Chick got the hose job of all time when Golden and his merry band of idiots bulked him up and played him at DT. He was serviceable but never the force he could have been if he just played DE and went after the QB.
Gotta be Willie Williams for me. As hyped up as he was and for him to end up never contributing in any meaningful way was crazy. A lot of the other guys mentioned at least contributed.
Second would be Leggett.