The Steelers had a terrible opening week against the Baltimore Ravens, but their Week 2 matchup against the Seattle Seahawks is a lot more favorable, and there's no reason to pull the plug on the Steelers you've drafted for your fantasy football team. Here's SB Nation Pittsburgh's advice: Plan on starting all the Steelers you started in Week 1.
That includes quarterback Ben Roethlisberger, who had a miserable week, throwing three interceptions and losing two fumbles. He might have killed you in Week 1, but don't count on a similarly poor performance against the Seahawks' weaker defense.
Also, don't pull the plug on Rashard Mendenhall. (You probably can't, anyway, given that it's usually very hard to dump a starting running back, but even if you could, don't.) Mendenhall only picked up 45 rushing yards against the Ravens, but the Steelers were behind all game, forcing the Steelers to throw.
Receiver Mike Wallace had a good game in Week 1, and there's no reason not to expect him to do so again. Hines Ward might also be a reasonable start.