They should be!! That whole team is going to look really different next year from the coaching staff on down I think...You're probably going to see alot of defensive players drafted by Miami in the next couple of years, and they'll probably be one of the better defensive teams in the NFL very soon.
Should be interesting to see how that effects N.E. They've essentially had a free ride in their division for awhile now, with really only the Jets ever fielding a playoff caliber team, and usually they weren't that great of a team anyways.
If Miami steps it up, the Jets find a QB, and Buffalo continues to improve with its young talent, that division could be ultra-competitive soon.