Steelers quarterback Byron Leftwich ran the first-team offense on Sunday, but coach Mike Tomlin warns against already naming him the team's starter. Ben Roethlisberger will be suspended for at least the season's first four games. "Some of the evaluation-oriented things can't take place in shorts," Tomlin said. "So it's on my radar, but not very high on the to-do list at this point. It will be addressed at some point." Tomlin said one reason Leftwich ran the first-time offense during the five practices the Steelers just held was so he could work with the starters after not being with the team in 2009. "The other guys will get opportunities," Tomlin said.