I think Mark Breland never lived up to the hype, as they were calling him the next Sugar Ray Robinson, but I would'nt call him a bust, he was a 2 weight division title holder, now it you say they did'nt live up to there potential then I would say yeah, your right. But theres plenty more like Camacho sr,(could have been an all-time p4p great IMO) John Mugabi, Howard Davis, Leon Spinks, Cooney, Page, Tubbs, Tyson, Bobby Cyzy, Alex Ramos, David Reid, Curtis Parker(at one time I thought it would take a herculean performance to beat him). Now Duane Bobick was a BUST!