Everyone has a plan until they get hit in the mouth. Last week, the Pittsburgh Steelers’ offensive line got hit in the mouth. And they crumbled as if they were fighting Mike Tyson. Sunday’s game against Detroit is another exhibition contest and they don’t count in the standings. But this is meaningful action for the Steelers’ front five, a unit that looked as bad as bad could be last Saturday against Jacksonville. The summer is for addressing and correcting mistakes and speaking to reporters Friday, Mike Tomlin’s liked what he’s seen from the o-line. But he knows none of that matters if they don’t get the job done this weekend.