I do not agree about the O-Line Go ...you said it yourself ...lack of depth. Also our lines, until the last year & 1/2 were too light and too tall. Lack of strength led to early and obvious holes that were easily exploited by our opposition.
He inherited the Heacock/Tressel tradition of depth with guys like Rodemoyer, Page, Elkins, Radakovich, Coates, DJ Main, Sinko and Mays. He lost Colgrove, Figerora, Dugan, Brown, O'Hara and Sazdanoff from the O-line; then Wolf recruited 6 D linemen (far more than we needed) & had to bring in a JUCO in Herdman for the O...Wolf's O-Line frosh (Conlan and Green) did not work out, forcing him to go JUCO again in 12. His 12 & 13 classes were better and we saw the difference that it made. W took over a team with 2 starting center's and 2-reserve & ended up moving a guy over in 14. I am a firm believer in the fact that you need 10 starting down-linemen on each side of the ball.
Also our d-linemen were good at getting their hands up, but could not penetrate. This put more pressure on our dbacks & exposed them.