Just to play devil's advocate, WB lost (to graduation or transfer) 3 starting DBs, 2 starting LBs, a DL, at least 2 starting O linemen, starting TE, starting RB, and top 4 WRs. on a 3 win team. That's a lot to replace.
As far as other sports success, which teams specifically are you thinking about and how would it transition to success on the football field?
The boys basketball team had arguably one of their best senior classes since 1985, I think they finished 12-15.