I don't know if the blame falls on Weis or ND, but either way it wasn't working and never worked.
I liked ND's old coach Ty Willingham
Agreed, they fired Willingham too quickly. Then they gave Weis a long extension too quickly. ND's success in Weis's first year was thanks to players Willingham recruited. Weis has done a pretty good job recruiting too, and hopefully next season the team will click. They're only going to take a hit on the OL where 2 or 3 starters are leaving, other than that I think the entire starting defense will be back, and the entire offense except for James Aldridge, as long as Clausen or Floyd don't leave for the NFL early.