Here's a good preseason analysis of Steve Slaton from Football Outsiders.

Steve Slaton’s Second-Quarter Drive

Last Friday, Cosell told Adam Caplan of SIRIUS NFL Radio that Slaton has impressed him through the preseason. While running backs in spread offenses are indeed difficult to evaluate, the consensus is that Slaton runs with more of a physical presence than expected, but with enough quickness to avoid hit after hit. With Ahman Green and Chris Brown looking like serious injury risks, Slaton’s a good back to keep in mind.