This is the first of 3 or 4 of my Bills mocks this offseason, obviously lots will change so this is very preliminary.

Mock after the jump

Pick #10- David DeCastro- OL, Stanford. Decastro is one of the best interior line prospects in years. 6'5 310lb. Only issue is he has rarely played against good pass-rusher, but is elite in run blocking and pass blocking. An interior line of DeCastro-Wood-Levitre would open holes galore for Spiller/Jackson. He's an experienced, 3 year starter, so I could see Nix liking him, a lot. DeCastro is the type of offensive lineman you could potentially build an offense around, much like Steve Hutchinson.

My top 3 favorite other options: 1. Ryan Tannehill (QB, Texas A&M) 2. Alshon Jeffrey (WR, South Carolina) 3. Jonathan Martin (OT, Stanford).

Note: I know many here will be upset because I don't have a defensive player slotted at this pick, especially OLB, but this draft is loaded with LB talent

Pick #41- Melvin Ingram- OLB/DE, South Carolina. Ingram has had back-back strong years in the SEC, notching 19 sacks in the past 2 years. Has good size along with speed. I could see him having a strong combine, thus moving him into 1st round pick territory, but as of now he is slotted as a 2nd round prospect.

My top 3 other options: 1. Mohamed Sanu (WR, Rutgers) 2. Jayron Hosley (CB, Virginia) 3. Lavonte David (OLB, Nebraska)

Pick #72- Chase Thomas- OLB, Stanford. Can create sacks with his pass rushing ability and was Stanford's best run stopper this season. Has a clean injury record and has the physical ability to play in an NFL 34 system. Good play recognition and instincts.

Top 3 other options: 1. Frank Alexander (OLB/DE, Oklahoma) 2. Jordan White (WR, Western Michigan) 3. Shaun Prater (CB, Iowa)

Pick #106- Ryan Broyles- WR, Oklahoma. Broyles was very productive in 2010, but in 2011 he ended his season with a torn ACL. I'm not a fan of drafting players with injury backgrounds, but this is the exception. Broyles has way too much talent to pass on him in the 4th round. He could end up going much earlier with a combine showing he is healthy

Pick #127- Coryell Judie- CB, Texas A&M. Still not sold on Williams or Rodgers. McGee is aging and McKelvin is a disappointing pick. CB is a need, but not a top 3 need for this team. Judie who could play man or zone in the NFL. He missed 5 games this year, but when he played he was productive.

Pick #138- Ryan Lindley- QB, San Diego State- Great arm strength, size, quick release, good mechanics, and speed. Unfortunately doesn't have the football IQ at the moment. Lindley is the perfect guy to draft in a later round and let him sit and develop behind Fitzpatrick. Teach this guy the game and let him progress on the bench and he could become a legitimate NFL QB with all the physical ability he has.

Pick #170- Audie Cole- ILB, NCST- An experienced player, who has played snaps on North Carolina State since 2008. Not a physically gifted player, but a good IQ

Pick # 202- Lucas Nix- OT, Pittsburgh- 3 year starter at Pitt. Good size, could become a good backup OL.