It didn't work for the Raiders last year. The Jaguars will see if it works for them this year. And the Steelers are also going to test it out. It's a zone-blocking run scheme, and while the Steelers won't make a full change from their years as power run offense, they want to mix it up in an effort to confuse defenses and keep their offensive line fresh. Now they have to figure out which of their running backs -- Isaac Redman , rookie Le'Veon Bell and Jonathan Dwyer -- works best in that type of system.
Just because the zone-blocking scheme leads to tremendous success for a player like Arian Foster doesn't mean those results will be replicated for every team. It's about personnel, and there doesn't seem to be a perfect fit for such a scheme on Pittsburgh's roster. Bell, like Redman and Dwyer, is more of a grind-it-out running back. All three seem to be better for a power offense. I should restate that the power run game isn't leaving the Black and Yellow; it's just being scaled back a bit. Regardless, Bell should be expected to win the starting job out of training camp.