I don't watch him as much as the Penn State fans here do, but I saw him a fair amount in 2005 and was very impressed. No way to downplay what he did that season. I thought Hawk was a little better, but Poz was an amazing LB.
Admittedly, I only saw him once in 2006 and that was during the ND game. He looked very average. He ways always moving around, but it seemed other LBs were making the plays. Maybe ND was keying on him, but I kept waiting for him to make a big play. There was one occasion where a big run went right by him...I can't remember if the FB took him out or if Darius just shook him, but I remember thinking this is not the same Poz as last year.
I don't know...I've also never seen Willis play, but I would think that he is more the athlete that we would want for our defense.