A couple more links:
Pruista's notes and Lolley's notes (probably available for free on his blog) both mention Humpal as someone who has impressed. Intersting that he's doing well in coverage; I thought he looked more like a 2 down run stuffer/special teamer when we drafted him. He could give us 4 solid ILB's for the time being. Larry Foote II?
Harris writes an article about Tomlin doing the same thing to Hampton that he did to Pat Williams (who was also overweight) in his one year as DC in Minny. Williams, who was older at the time than Hampton is now, went on to have a Pro-Bowl season as the Vikings run defense went from below average (20th, 115 ypg, 4.0 ypc) to historically good (1st, 61.6 ypg, 2.8 ypc). I'm sure there were other factors, but the defensive personnel was basically the same from 2005 to 2006.
With all the talk of the OL being set (other than C), I'm more convinced now than ever that we should extend Marvel. Starks just isn't getting it done, and the coaches don't like him. Colon isn't an outstanding tackle by any means, but it's pretty clear that he can do an okay job there, and move to guard eventually. If we sign Marvel and draft a RT (much easier than drafting a LT), we can get through the next few years. Essex is an acceptable backup with apparently a newfound position flexibility who we could probably sign for cheap next year (hopefully no delusions of starting anywhere). He could start if Marvel gets injured, but we shouldn't go into a season with him as the main option there. My point is that we need to provide some continuity on the line, and hopefully that continuity won't be "sucking".