It depends on what role you want them to play.
I could see someone like TA McLendon doing a lot of the things Richie does.
Darren Sproles could be a scat back, kick return sort.
Cedric Houston might be the best overall player.
Alvin Pearman could be a spot player and special teams ace.
Brandon Jacobs could be a tweener FB type.
Ryan Moats has turned a few heads with his play.