The NFL Combine was very friendly to some players, but to others it wasn't so nice after lackluster showings in the workouts. Other prospects who didn't show up because of medical reasons or because they are banking on a pro day are quickly seeing their stock slide in the draft.
Because of these reasons, the positions of first-round prospects are changing by the day.
Let's take a look at which players aren't looking so great after the combine as a result of a less-than impressive performance or a no-show altogether.
*Note: Players hurt by combine no-show or bad performance are listed in italics.
1. Kansas City Chiefs: Luke Joeckel, OT, Texas A&M
The Chiefs appear to have their answer behind center, so it's likely they take Joeckel with this pick. Kansas City needs some major help along its offensive line and if it hopes to have success with its new quarterback, then beefing up the O-line is a must.
2. Jacksonville Jaguars: Sharrif Floyd, DT, Florida
The Jags were awful at stopping the run last season and some help up the middle is necessary if they want to change that. Floyd's stock has been soaring of late and he looks like a tackle who can make a difference on this team's defense.
3. Oakland Raiders: Dion Jordan, DE, Oregon
The Raiders need some major help in the pass-rushing department and a sensational athlete like Jordan is just what the doctor ordered. The Oregon product wasn't supposed to go this high originally, but the combine did wonders for his draft stock.
4. Philadelphia Eagles: Eric Fisher, OT, Central Michigan
Fisher is considered the second best tackle in the 2013 NFL draft and considering the Eagles' offensive line was horrid last season, they'd be wise to choose Fisher with this pick.
5. Detroit Lions: Dee Milliner, CB, Alabama
Milliner will undergo shoulder surgery now that the combine is finished, but that doesn't change the fact that he's the best cornerback on the board and his great showing at the combine proved that. Detroit's defense could use a shutdown corner and Milliner is the best candidate to develop into one in this draft.
6. Cleveland Browns: Jarvis Jones, OLB, Georgia
Without a top cornerback to take in this spot, the Browns should look to add a pass rusher and Jones is the best fit for that need.
Jones was the NCAA's sack leader last season and has great size, strength and overall athletic ability that makes him a terror on the edge. However, his no-show at the combine isn't helping his position on draft day.
Also, his spinal stenosis condition has been known to end NFL careers early. Because of his condition, there's just no telling how long Jones can sustain an NFL career.
Aside from that, Jones is one of the best defensive players on the board this year and the Browns will likely be happy to take the risk in order to bring in an impact player like the Georgia product.
A great pro day could help propel him back up the board, but that remains to be seen.
7. Arizona Cardinals: Geno Smith, QB, West Virginia
There are some of concerns about Smith's game, namely his accuracy when throwing from the pocket and his ability to process information on the field. Furthermore, Smith had a lackluster finish to his college career after lighting the world on fire early on.
He did well in the more physical aspects of the NFL Combine such as the 40-yard dash, broad and vertical jumps, but his performance in the passing drills left a lot to be desired.
Smith did well on throws that require velocity and even made some nice touch passes, but the deep balls were an issue as he left his passes in the air too long, forcing his receiver to slow down to make the play.
On top of that, his inaccuracy with square-in routes forced his target to adjust in order to make the play.
For someone billed as a pocket passer with a strong arm, Smith's combine performance didn't do much to promote his strengths or dispute his weaknesses. Clearly the former Mountaineer can't necessarily make all the throws and that makes him a very risky bet.
8. Buffalo Bills: Matt Barkley, QB, USC
I've kept Barkley in this slot since my first mock draft of the year, but I have to say his chances of being drafted in the top 10 are looking more bleak by the day.
Shoulder surgery KO'd Barkley from performing at the combine and that will help push him further out of contention as a top quarterback in this year's class for the time being.
However, he will show his stuff at USC's pro day and that will be a golden opportunity for Bakley to improve his stock. The former Trojans signal-caller has been pegged as a great leader and a very intelligent player, so those qualities no doubt keep him in the conversation.
The biggest issue scouts have with Barkley is his arm strength, which is nowhere near elite. Also, there will be questions about his shoulder after his recent surgery.
With all that being said, Barkley could go either way as a NFL quarterback and that leaves him as a potential bust—especially if he's drafted this high.
9. New York Jets: Barkevious Mingo, DE, LSU
Head coach Rex Ryan's squad has not had success getting to the quarterback in recent years, so adding a pass rusher will be a priority in this draft. Mingo still has some work to do, but his combine performance showed there is some serious talent and great football to be played by this prospect.
10. Tennessee Titans: Chance Warmack, OG, Alabama
The Titans were ranked No. 21 in the rushing department last season, and that must change if they hope to take pressure off their quarterback. Great size and strength make Warmack about as NFL-ready as can be and he should make an immediate impact up the middle for the Titans.
11. San Diego Chargers: Lane Johnson, OT, Oklahoma
Johnson's combine was a complete success as the Oklahoma product showed he was a great all-around tackle prospect. Johnson had better numbers in the 40-yard dash and bench press than both Joeckel and Fisher, but what's most impressive is how great his footwork is. The Chargers need some help on the offensive line and Johnson is their best hope at this point in the draft.
12. Miami Dolphins: Xavier Rhodes, CB, Florida State
Miami will look to bolster its receiving corps in free agency more likely than not, so the Dolphins should look elsewhere with this pick. Rhodes' combine proved he is a terrific athlete and he has great size to be a difference-maker in the secondary. The Dolphins need an impact corner who can bolster their secondary and Rhodes is their best bet.
13. Tampa Bay Buccaneers: Kenny Vaccaro, S, Texas
The Bucs were an absolute dreadful team against the pass last season and an upgrade in their secondary is a must in this draft. After Milliner and Rhodes are off the board, Vaccaro is the next best bet to help Tampa Bay out as he can play both safety positions and has even lined up as a slot cornerback during his college career.
Ronde Barber won't be around forever and Vaccaro could be his heir-apparent.
14. Carolina Panthers: Star Lotulelei, DT, Utah
The Panthers need help up the middle of their defensive line and Lotulelei will be an intriguing option should he fall this far on draft day.
Lotulelei was pegged as one of the top defensive linemen in this year's draft, but it was recently discovered that he has a heart condition that could potentially derail his career. While we don't know how serious it is yet, the simple fact that it's even being mentioned will scare teams off.
The Utah product is a risk because such a heart condition could end his tenure in the NFL early, but Lotulelei has displayed so much skill that someone will take a chance on him. It's sad that something out of his control will likely affect his original position on draft day.
I wouldn't be surprised to see him slip further than this, however let's keep him right here until we know more about his heart problem.
15. New Orleans Saints: Bjoern Werner, DE, Florida State
The Saints must begin rebuilding their defense after a horrid showing during the 2012 season and a pass rusher like Werner is exactly what they need. Granted, he is a bit raw and will need some work which is why he'll fall this far, but Werner could develop into a stud on the defensive line.
16. St. Louis Rams: Jonathan Cooper, OG, North Carolina
The Rams would've loved to get their hands on one of the top tackles in this draft, but after the combine, it's looking less likely one will fall to them. The next order of business of the offensive line will be the guard position and a big, strong athlete like Cooper is a great fit for St. Louis.
17. Pittsburgh Steelers: Ezekiel Ansah, DE, BYU
Word from Tony Pauline of DraftInsider.net is that the Steelers are "drooling" over Ansah as a potential 3-4 outside linebacker on their 3-4 defense. Ansah had a solid combine as well, so it seems he's a lock to go to the Steelers if he's still on the board.
18. Dallas Cowboys: Sheldon Richardson, DT, Missouri
The Cowboys were not very good against the run last season, so it's necessary they made an upgrade on the defensive line. Richardson will be the perfect guy to clog the running lanes inside and make things difficult for opposing running backs.
19. New York Giants: Desmond Trufant, CB, Washington
New York was burned deep time and time again last season and that can't continue to be a reality if this team hopes to improve on defense next season. Trufant has a great football pedigree and certainly has the tools to keep up with some of the NFL's best receivers.
20. Chicago Bears: D.J. Fluker, OT, Alabama
The Bears desperately need some help all over their offensive line and a big, strong prospect like Fluker should do the trick. Chicago has some weapons on offense, but that won't matter if Cutler is getting tossed around by opposing defenses thanks to a lack of protection.
21. Cincinnati Bengals: Alec Ogletree, OLB, Georgia
As a former safety, Ogletree is a versatile linebacker who can drop back into coverage and make plays. He's a perfect fit for what the Bengals need and will create a nasty duo when lined up opposite Vontaze Burfict.
22. St. Louis Rams (From Washington): Tavon Austin, WR, West Virginia
Austin was pretty impressive during the combine and it appears that he will be an explosive playmaker at the next level. The Rams could end up losing Danny Amendola to free agency and if that happens, Austin would be a perfect replacement for him.
23. Minnesota Vikings: Cordarrelle Patterson, WR, Tennessee
Percy Harvin's status with the Vikings remains up in the air, but whether they have him or not, the Vikes are extremely thin at the wide receiver position. Patterson is a playmaker who can line up anywhere on the field and make big things happen with his great athletic ability.
24. Indianapolis Colts: Damontre Moore, DE, Texas A&M
Moore seemed like a lock to go in the top 10 before the combine, but a horrible performance in front of scouts will have his stock dropping considerably and makes him the perfect candidate to be a bust.
The biggest knock on Moore has been his athleticism and he didn't do much to disprove that after posting a bad 40-yard dash time. Also, Moore notched just 12 reps in the bench press, so not even strength is something that can be pointed to as a positive for the Texas A&M product.
However, the Colts need a pass rusher now that Dwight Freeney is gone and the fact that a formerly projected top pick is still around in this spot will be too much for Indy to pass up on.
25. Seattle Seahawks: Barrett Jones, C, Alabama
The Seahawks could use some offensive line help in order to keep Russell Wilson better protected and Jones is the right guy to get it done. The Alabama product has experience playing all over the offensive line and that kind of versatility will enable Seattle to fill multiple spots on the O-line.
26. Green Bay Packers: Sam Montgomery, DE, LSU
The Biggest problem for the Packers defense right now is that they lack a solid pass rusher on the defensive line and Montgomery would be a step in the right direction for fixing that issue. Without an impact offensive lineman in this spot, Green Bay will look to defense instead.
27. Houston Texans: Keenan Allen, WR, California
The Texans need another option in their receiving corps to help open up the field and take some pressure off Andre Johnson. The only way to do that is to draft a playmaking receiver and Allen is the best at his position late in the first round.
28. Denver Broncos: Kevin Minter, ILB, LSU
Denver is good to go on offense, so defense will be the focus here. The Broncos will help bolster their already solid front seven by adding Minter up the middle and wisely passing up on Manti Te'o.
29. New England Patriots: Eric Reid, S, LSU
The Pats could use some help in their secondary, namely at safety, and Reid will be the best candidate to fill the void late in the first round. Reid is a strong, versatile player who can cover tight ends with success and should be able to make an impact on New England's defense for years to come.
30. Atlanta Falcons: Tyler Eifert, TE, Notre Dame
If Atlanta loses Tony Gonzalez to retirement this offseason, that will leave a huge void in their passing attack. That's why taking a talented receiver like Eifert who is improved on the blocking end makes the most sense.
31. San Francisco 49ers: Jesse Williams, DT, Alabama
The Niners had plenty of injury issues on defense last season, so adding some depth wouldn't hurt for the 2013 campaign. Williams is a big strong tackle who can clog running lanes and make things difficult for opposing running backs.
32. Baltimore Ravens: Manti Te'o, ILB, Notre Dame
The retirement of Ray Lewis has left the Ravens with a need in the linebacker spot and Te'o could fill that void. Granted, John Harbaugh didn't like what he saw from Te'o in the 40-yard dash at the combine, but I think the Notre Dame product still has another chance at the school's pro day to rectify that.
Te'o was once thought the be a top-10 pick in this year's draft, but a bad game in the national championship against Alabama and the girlfriend hoax hurt his stock considerably. Now, his poor showing at the combine has dropped him even further, but again, he can still change these negative perceptions in March.
If he can't, the Ravens will certainly look elsewhere with this pick.