Pac-12 2015 NFL Draft big board: The Top 12 Pac-12 NFL Draft prospects

I don't know if Mel Kiper has copyrighted The Big Board, but now that early declarations are over and all-star games are wrapping up, here is how our Pac-12 Big Board stacks up. I will probably update this a time or two before we get to the draft based on what happens in the combine and in the home stretch when teams start to tip their caps a little more.

1. Leonard Williams DE USC

Williams is the best overall prospect in the draft for my money. He is the kind of defensive linemen that you can plug into an NFL defense and he can quickly upgrade your entire defense in a year or two.

2. Marcus Mariota QB Oregon

I am still waiting for my prize for being one of the only people on the Internet up until a week ago that was regularly wondering why Mariota was seen as a slam dunk NFL prospect. Mariota's production at Oregon was unmatched, he has excellent speed, adequate height and arm but the questions about how he will translate to the next level are endless. Still, his pedigree, speed and the fact that he plays the most important and hard to find position in the game means that I think he will be off the board in the Top 10.

3. Andrus Peat T Stanford

Peat's stock seems to fluctuate heavily, but it seems like it is starting to settle at maybe being the first offensive lineman taken in the draft and go right around the 10^th spot where a lot of team need line help. He is also a guy to watch because his physical skills might boost him once we get to the combine.

4. Danny Shelton DT Washington

Shelton would be being talked about as a potential first pick in a world that existed just six or seven years ago, but players in his mold simply are not as valuable as they used to be. However, he still has mind boggling speed, mobility and instincts for a player of his size and that will make him the first pure defensive tackle off of the board, possibly as soon as inside the Top 10.

5. Shaq Thompson LB Washington

About as good of a pure football player as you are going to find in this draft, Thompson's versatility and pure playmaker ability could get him off of the board as early as the Top 10 if a team likes him enough. You simply do not see players that not only have the ability to be an All-American linebacker and put together 100-yard games as a running back, let alone ones that can actually go out and do it.

6. Marcus Peters CB Washington

Peters looked like a Top 10 pick and guaranteed first cornerback taken before he got himself kicked off of the Huskies in November. His dismissal will certainly hurt his stock, but he still is a full package corner that is probably the closest thing to an elite prospect at corner in a weak crop of defensive backs in this year's draft.

7. Jaelen Strong WR Arizona State

A rangy receiver who is excellent when the ball is in the air, Strong's size and skills probably put him just outside of the top pack of receivers in this year's draft (Amari Cooper, Kevin White & DeVante Parker), but he can easily sneak his way up there if he runs well enough at the combine.

8. Brett Hundley QB UCLA

Hundley is one of the hardest to figure out draft prospects from the Pac-12 in a long time. He has top pick measurable, won big at UCLA and put up great numbers, but always seems to be regarded as kind of a B+ player. I think this perception pushes him down to the early-second round where a team that misses out on Jameis Winston or Mariota takes him, but I also would not be shocked if the lack of depth in the QB crop and the need for the position by many teams pushes him into the first round.

9. Eric Kendricks LB UCLA

Scouts appear to have taken notice of the tackling machine that is Kendricks as I am seeing him regularly be slotted as the first inside linebacker to go in the draft. There is a lot of value in simply being a player that can read a play and make the tackle every time and Kendricks is about as good of a player at doing that as there is in the draft.

10. Arik Armstead DE Oregon

Armstead might be the top prospect in the draft from a purely physical standout as a 6'8 295 combo defensive linemen that was able to make the Duck basketball team. He could easily be the next Calais Campbell.

11. Owamagbe Odighizuwa DE UCLA

Odighizuwa has blown up ever since he came back after missing all of 2013 with an injury. His pass rushing abilities combined with being an NFL defensive end ready 270 pounds seems to be blazing him up draft boards more and more each day.

12. Jeremiah Poutasi T Utah

The massive Poutasi (6'6 330) is raw but dripping with talent and measurable that are rocketing up draft boards and into second round territory. He is the classic guy that simply has everything that you look for in a tackle that you cannot teach.

Just off the board

Nelson Agholor WR USC

Alex Carter CB Stanford

Ellis McCarthy DT UCLA

Jake Fisher T Oregon

Hroniss Grasu C Oregon

Ifo Ekpre-Olomu CB Oregon

Nate Orchard DE Utah

Hau'oli Kikaha DE Washington

Early peak at 2016

Since we now know who is officially staying and going, let's take a very early look at some of the top NFL prospects in the Pac-12 to keep an eye on in 2015.

1. Scooby Wright LB Arizona *Jr.

Wright was arguably the nation's best defender in 2014 as a true sophomore so even if he might not have the most jaw-dropping measurables, he should be an elite NFL prospect.

2. Myles Jack LB UCLA *Jr.

Jack has been one of the most-hyped up players in recent Pac-12 history and for good reason. He has everything you want physically from a linebacker with a knack for making big plays.

3. Su'a Cravens S USC *Jr.

Cravens has the size to play linebacker and the skills and athleticism to play safety, making him a likely first round pick in 2016.

4. DeForest Buckner DE Oregon

A 6'7 290-pound force up front, Buckner would have been a second or third rounder had he declared this year.

5. Isaac Seumalo C Oregon State

Seumalo probably would have been a second or third rounder and first center off the board if he had been healthy in 2014 and played his junior season.