i wouldn't call him the biggest bust........many other names come to mind......ryan leaf......trev alberts......and lawrence phillips......to name a few.
A bust in the sense of the ridiculous hype and the fact that he was the quintessential badass linebacker in college, big school with a ton of tradition and a reputation for toughness, the only 2x Dick Butkis award winner/recently selected for the all century team, all American academic, workout freak 450 pound bench press and 4.6 speed.
When you take all THAT into consideration he was a bust of sorts but the guy still started every game he was available and was pretty decent overall. It was injuries that ultimately forced him out of the league, not poor play.