Grossman looks good so far

The Redskins starting offense remain in the game against the Steelers, deep into the first half.  Leading the way is first-string quarterback Rex Grossman, who is tightening his grip on the job with a 13-for-17 performance through three drives. The first effort ended with Shayne Graham shanking a 29-yard field goal.  Drive No. 2 sputtered…