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The 2014 draft has been called one of the best ever. In a press conference, Pittsburgh Steelers general manager Kevin Colbert called it the "deepest" he had seen in 30 years. I've not yet been doing the job 30 years, but in my 10 years covering the draft, this is the best group of talent I've ever seen in one class.

No matter where your team has a need, the 2014 class can fill it. There are top-tier quarterbacks, an amazing group of wide receivers, starting-caliber stars and depth at running back and tight end, and we could see six offensive tackles come off the board on Day 1.

Yes, this draft should be a good one. So which players are the best? 

With the NFL Scouting Combine in the books, here's an updated look at the 300 best players available in the 2014 draft class.

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In the draft community, we always talk about "first-round talent." These are the 32 players worthy of a first-round pick.

The diversity here is exceptional. Four quarterbacks, four offensive tackles, defenders able to play in a 3-4 or 4-3 on the edge and in the middle, and a load of wide receivers and cornerbacks. But there are no offensive guards, centers or running backs here. 

These are the best of the best. Meet the top 32.

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There isn't a quarterback in the 2014 class who carries a grade similar to Andrew Luck or Peyton Manning, but that doesn't mean the talent isn't worth getting excited about.

Teddy Bridgewater has day-one starting tools and has the second-highest grade I've given a quarterback in my career. Then you have two guys built on potential, but also big risks, in Blake Bortles and Johnny Manziel. Derek Carr may be lost in the shuffle, but he's capable of playing immediately and has the big arm and prototypical tools you want at the position.

The 2014 class sees a huge drop-off from there. If you need a starting quarterback, you'd better get one early.

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Running backs aren't as valuable as they once were in the NFL draft, but this class has a lot to like.

The high number of underclassmen entering the draft added incredible depth to the group, and there are at least 10 backs available with day-one starting ability. And whatever flavor of back you like, there's one here. Teams can go big with Carlos Hyde or Jeremy Hill. They can go fast with Tre Mason and Lache Seastrunk. You can go with a do-it-all back like Charles Sims or Marion Grice. And then you have guys like Bishop Sankey who tend to do everything well.

A high number of future NFL starters will be coming from this group.

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The fullback position may be a dying breed, but for the teams that still use the versatile offensive chess piece, this year's class has some upside.

Jay Prosch headlines a group of athletic tight ends who come in all shapes and sizes. For teams that want a traditional pass-catcher/blocker, Prosch and Gator Hoskins are solid options. Or you could go the punishing blocker/runner route with J.C. Copeland.  

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The deepest wide receiver class I've ever seen comes into the NFL this year. Headlined by Sammy Watkins, this crew has a crazy 11 players ranked with at least a second-round grade. You won't see that happen very often. 

As the NFL goes to a passing league, this is exactly the type of class teams and scouts can get excited about. Whether it's a game-changing, do-it-all threat like Watkins or big, matchup nightmares like Mike Evans and Kelvin Benjamin, you have to get excited about the talent available here.

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As the tight end position evolves in the NFL, so does the type of player lining up at the position. Gone are the days of the blocking tight end. Today's player must be athletic, fast, capable as a receiver and dynamic enough to move around before the snap.

The 2014 class is good but not great. The top end is exceptional, and Eric Ebron is a player to get excited about, but the drop-off from the top tier to the second group (guys like Troy Niklas and C.J. Fiedorowicz) is considerable. 

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If you're in need of a good left tackle, this is the class for you.

Anchored by studs like Greg Robinson, a once-in-a-decade-type talent and athlete at the position, there's a good balance of elite-prospect and first-round depth here. Jake Matthews isn't the same level athlete as Robinson, but his technique is a blueprint for success in the NFL. And we can't forget stars like Taylor Lewan and Zack Martin after both dominated at major programs over the course of their respective careers.

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The 2014 class doesn't come close to rivaling the talent we saw come off the board early in the 2013 draft, but there's still a lot of starting-quality players here.

David Yankey and Xavier Su'a-Filo come off excellent Pac-12 careers and are both NFL ready. Cyril Richardson and Gabe Jackson give teams the big, powerful right guard profile and also show NFL-readiness. And you have to love the play of Brandon Thomas, a tackle at Clemson but projected guard once in the NFL.

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The NFL draft hasn't seen an elite center prospect since Maurkice Pouncey in 2010, and the post-combine results would indicate we'll have another year without a top-tier talent at the position. That said, there are three players here worthy of starting right away in the NFL.

Marcus Martin is the closest thing this class has to an elite talent, but the junior from USC is raw overall. Weston Richburg is smooth, fluid and poised but will need to improve in the run game. Travis Swanson is the prototypical center, but he can be too tall and back-bends in protection. Easy fixes for all three, and once ironed out, they look like studs.

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Classifying all pass-rushers as simply defensive ends or outside linebackers is difficult, but at this stage of the draft process, that's the most accurate way to label the many players at each position. 

Some of the players listed below will be 6-technique ends in a 4-3. Some will be 5-techs in a 3-4. Some will stand up at outside linebacker. The bottom line is that the talent is eye-opening, no matter where you end up playing many of these athletes.

With three legit top-15 players, the defensive end class is once again stacked. Even in Rounds 2 and 3, there are quality players with early starting potential.

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Aaron Donald is one of the most decorated defensive linemen I have ever seen leave college, and he's earned his status atop the list. Not far behind him is a group of players with amazing potential but also question marks in terms of effort and consistency.

Timmy Jernigan, Ra'Shede Hageman and Will Sutton all have first-round film at times, but figuring out which player you'll get is the reason each has moved down the board over the course of the year.

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Just one player ranked at inside linebacker carries a first- or second-round grade, but the overall talent here is appealing.

Alabama's C.J. Mosley is the lone player inside the top two rounds, and he's earned it. The anchor of the Crimson Tide defense, Mosley has NaVorro Bowman-like ability. But the No. 2-ranked linebacker, Wisconsin's Chris Borland, is one of my favorite players in the entire draft. He's not big, he's not super fast, but his instincts, consistency and tackling ability are that of a longtime NFL starter.

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Not since Von Miller has the NFL seen the athletic potential at outside linebacker that Khalil Mack and Anthony Barr both possess. They're fast, active and productive, and they come to the league with upside still. The potential from both will have two teams very excited about their new defensive weapon.

The depth here is also very good. This group is heavily influenced by senior players rather than the high number of juniors seen at other spots. Ryan Shazier is the lone underclassman at the position inside the top 99 players overall, and even No. 100—Adrian Hubbard—graduated Alabama early.

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It's always tough to compare the talent at each position from class to class, but this looks like the deepest cornerback class I can remember. The top-end talent is good, with Justin Gilbert the highest-graded corner on my board since Patrick Peterson, and both Jason Verrett and Darqueze Dennard coming in as high-level talents. 

In a normal draft class, and not this super deep one, the top five cornerbacks here would all be first-round talents. As it stands now, at least that many could still go Day 1 on May 8.

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If NFL teams are going to attempt to copy what the Seattle Seahawks have done on defense, they'll all need to find their own version of Earl Thomas. Good luck, right?

In the 2014 class, there is no Thomas, but the top two safeties are unique talents. Both show day-one ability to step into a defense and be impacts. More similar to Eric Reid than Thomas or Kenny Vaccaro, both Ha Ha Clinton-Dix and Calvin Pryor can cover, hit and run well enough to impact the NFL.

The drop-off at the position after the first two is significant, but the top-end talent carries the overall group well.

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What stands out most about the strong safety class this season is the versatility of the players. Jimmie Ward could easily play free safety. The same goes for Sean Parker and Alden Darby. Then you have big hitters like Deone Bucannon and Ahmad Dixon—two guys who look like outside linebackers when lowering the boom on receivers.

The rankings aren't great from this class, but the strong safeties are a group you fall in love with on film. 

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Finding a talent at kicker worth drafting is tough, but when you lock on to a potentially great player, you have to move to get one. This year's class has just two players with a "draftable" grade, but both could be stars in the NFL.

It used to be rare to see a punter drafted, but those days are over. The 2013 draft saw a run on the fourth-down specialists, and we could see that again this May.