Four of top five grades go to linemen

By the early looks of it, NFL teams promise to get fat on talented "trenchmen" come next April's draft. In fact, four of the top five prospects on my board are offensive and defensive linemen.

The only non-lineman cracking my top five is Louisville QB Brian Brohm, who has the unenviable task of entering his senior season as the consensus No. 1 quarterback prospect. Brian Brohm needs a healthy and productive senior season under new head coach Steve Kragthorpe in order to avoid the same fate that Matt Leinart (slipped to the Cardinals at No. 10 overall in 2006) and Brady Quinn (slipped to the Browns at No. 22 overall in 2006) suffered before him.

The good news for NFL teams in need of a young signal caller is that Brian Brohm has plenty of competition. There are at least seven prospects (Michigan's