Depends on how you formulate your list. The guys on my list aren't just duds for a season. They generally screw me multiple times and always have some issue they are dealing with (team, injuries, whatever). Addai and Vernon Davis are great examples. Up one season, down the other. Addai starts out good, then flops because of one reason or another. It happens over and over and that's the reason guys should end up on the list....at least for me.