First let me say that I love the idea of drafting Kerrigan.
Kerrigan grades out very high as both a pass rush demon and run stuffer.
He has the size to set the edge and anchor against most TE's in the league. He is very active with his hands which should allow him to win the hand slapping contest against most OT's not named Long, Thomas or Ferguson.
He has dropped into coverage some and while it is not often a pretty sight, with proper coaching his technique should improve much like what Cunningham is going through now.
My problem with Kerrigan at #17 is that BB drafts based on value. Is Kerrigan, a potential 3 down LBer, value at number 17?
While most of us that watch Patriots football and see opposing QB's with 5 plus seconds to throw the football would say yes, but I don't think BB sees it that way.
For #17 my first preferance is Dareus, but I think he is off the board by then. And given how some of the 4-3 teams in front of us need a DE pass rusher, I think Kerrigan is beginning to rise up draft boards much like Chris Long did a few years ago.