NFL Mock Draft 2015: Full 1st-Round Projections for Nation's Top Prospects

Time is ticking away until the 2015 NFL draft, and many organizations have already slowed down their free-agency aspirations in lieu of April 30 nearing.

As clubs swing and miss on potential veteran free agents and the market dries up, the focus will draw closer and closer toward the 32 picks of Thursday night and beyond. While not as deep of a draft at certain positions as we're used to seeing, there's no shortage of talent atop the draft capable of making a Day 1 impact.

So many questions are left to be answered atop the draft as far as teams' intentions and pursuits, but the biggest needs of many clubs are starting to become known. Here's a fresh look at a Round 1 mock with pro days in full swing.

Pick	Team	Selection
1	Tampa Bay Buccaneers	Jameis Winston, QB, FSU
2	Tennessee Titans	Leonard Williams, DT, USC
3	Jacksonville Jaguars	Dante Fowler, DE/OLB, Florida
4	Oakland Raiders	Amari Cooper, WR, Alabama
5	Washington Redskins	Randy Gregory, DE/OLB, Nebraska
6	New York Jets	Marcus Mariota, QB, Oregon
7	Chicago Bears	Vic Beasley, OLB, Clemson
8	Atlanta Falcons	Shane Ray, DE, Missouri
9	New York Giants	Landon Collins, S, Alabama
10	St. Louis Rams	Kevin White, WR, West Virginia
11	Minnesota Vikings	Brandon Scherff, OT, Iowa
12	Cleveland Browns	Andrus Peat, OT, Stanford
13	New Orleans Saints	La'el Collins, OT, LSU
14	Miami Dolphins	DeVante Parker, WR, Louisville
15	San Francisco 49ers	Trae Waynes, CB, Michigan State
16	Houston Texans	Gerod Holliman, FS, Louisville
17	San Diego Chargers	Danny Shelton, DT, Washington
18	Kansas City Chiefs	T.J. Clemmings, OT, Pittsburgh
19	Cleveland Browns *via Buffalo*	Arik Armstead, DT/DE, Oregon
20	Philadelphia Eagles	Marcus Peters, CB, Washington
21	Cincinnati Bengals	Jalen Collins, CB, LSU
22	Pittsburgh Steelers	Alvin "Bud" Dupree, DE, Kentucky
23	Detroit Lions	Todd Gurley, RB, Georgia
24	Arizona Cardinals	Eddie Goldman, DT, FSU
25	Carolina Panthers	D.J. Humphries, OT, Florida
26	Baltimore Ravens	Melvin Gordon, RB, Wisconsin
27	Dallas Cowboys	P.J. Williams, CB, FSU
28	Denver Broncos	Ereck Flowers, OT, Miami
29	Indianapolis Colts	Benardrick McKinney, ILB, Mississippi State
30	Green Bay Packers	Denzel Perryman, ILB, Miami
31	New Orleans Saints *via Seattle*	Jaelen Strong, WR, Arizona State
32	New England Patriots	Cameron Erving, C, FSU

2. Tennessee Titans: DT Leonard Williams, USC

Julio Cortez/Associated Press

Oregon quarterback Marcus Mariota is running out of time to assert himself as a can't-miss No. 2 overall selection behind potential No. 1 pick Jameis Winston. It doesn't help that the team with the second pick has so many holes that going with the best overall player on the board is unarguably the right move.

And for the Tennessee Titans, doing so could be a game-changer for their defense. Already with one of the league's best defensive tackles in Jurrell Casey signed to a long-term deal, USC's Leonard Williams can line up right alongside the fellow former Trojan and wreak havoc.

He also fits pretty remarkably into the defensive scheme with new assistant Dick LeBeau, as Bleacher Report's Matt Miller analyzed below:

Titans head coach Ken Whisenhunt has stayed committed to young QB Zach Mettenberger as his diamond in the rough. Not only is it hard to see him picking Mariota at No. 2 and effectively giving up on the former sixth-round pick after putting faith in him in 2014, but Williams could come back to haunt them if they do, per Fox Sports Live:

"

USC DE Leonard Williams has a message for any team that wants to pick a QB ahead of him in the NFL Draft. https://t.co/itpo7w5pL8

— FOX Sports Live (@FOXSportsLive) March 12, 2015"

If Tennessee passes on Williams, it's more than likely that the division-rival Jacksonville Jaguars will swoop him up with the very next pick. The Titans would rather have Williams causing disturbances in the trenches for them than against them.

5. Washington Redskins: DE/OLB Randy Gregory, Nebraska

Joe Robbins/Getty Images

It's a loaded draft in terms of elite pass-rushers off the edge, but Nebraska's Randy Gregory is among the best of them.

At 6'5" and 235 pounds, Gregory comes in with some bulk building left to do but should still fit in right away into an edge-rushing scheme with the Redskins. A tall and lanky rusher with the ability to brisk past blockers and burst through gaps, he will be an impact-maker in the backfield from Day 1.

Former NFL great Shawne Merriman sees few players in the draft better than Gregory:

Washington comes into the draft with a coveted first-round pick for the first time since the Robert Griffin III trade, and it will be hard-pressed to use it any other way than securing an attacking presence on the edge. It's a quarterback-driven league, which means it's a quarterback-chasing-driven league for defenses, and Gregory does that with the best in this year's class.

The Redskins are set to stick with a 3-4 but are making some scheme changes to better work around outside linebacker Ryan Kerrigan, per the Washington Post's Mike Jones. And Gregory would be an ideal fit opposite Kerrigan.

15. San Francisco 49ers: CB Trae Waynes, Michigan State

Joe Robbins/Getty Images

Although it was expected for some time, the cornerback position was hit as hard as any amid the San Francisco 49ers' sudden rebuild in the wake of head coach Jim Tomsula's takeover. With Perrish Cox signing with Tennessee and Chris Culliver with Washington, immediate reinforcements are needed.

The No. 15 overall pick usually won't yield the draft's best corner, but that's just the case for San Francisco with Trae Waynes still available. The Michigan State cornerback is lengthy with 31" arms and a 6'0" frame, and his stiff on-ball coverage will fit in well with the 49ers.

The former Spartans defensive back put his abilities on display this week during Michigan State's pro day, and excelled, as NFL.com's Bucky Brooks noted:

Trading up may be needed in order to secure Waynes' rights, but the Niners should not be above that after making aggressive moves in the draft in recent off seasons. There are more necessities than expected in San Francisco following a free agency of exoduses out of the Bay Area, which should make nabbing a cornerback of Waynes' potential even more of a focal point entering the draft.