For example Bryce Brown if Spiller leaves or White from New England.
Carlos Hyde and Andre Williams are the rookies that fit that description. Someone in Seattle is going to be a good player, Christine Michael or Robert Turbin. White is really just a matter of if he can win carries and not fumble. You really never know what Belichick is gonna do there. Brown... meh. We've seen what Brown can do, and Buffalo has such a logjam there, I'm not convinced we won't see all of them gone in a year or two and a whole new stable. haha