2 years on the practice and playing in NFL Europe...I think he can do it, I'm not sure he'll wait 3-4 to actually make an NFL roster though. I went to a D-II school and 2 yrs ago a guy from my school got drafted by the Giants. He was a 3-time D-II All-American and still got axed on the last cut. Lesnar has an uphill battle for sure but it only costs a team about $5K a week to put him on the practice squad and use him for a tackling dummy.