Fred Jackson: Triple threat at RB, would be a huge target for Josh, NFL MVP in 2011 before he broke his leg
Kyle Williams: Best DT of the drought era (yeah, I seddit!), best FB of the drought era, pass-catching threat out the backfield
The third choice is difficult, many to choose from. Imma go:
Antoine Winfield: Lockdown corner, but even more importantly, very strong defender against the run.
Honorable mentions: Eric Moulds, London Fletcher, Aaron Schobel.
Great post, OP!