The position of Cincinnati Bengal running back has got to be cursed. Just off the top of my head.
(I know I'm missing a few more)
...and to some extent, Corey Dillon, All these guys have either been rendered totally ineffective due to injuries or have become disruptive because of attitude. But the RB position in a Bengals uniform has not been historically successful.
The curse of the Ickey Shuffle. I like the sound of that.