They’re not going to fire Tomlin, the Steelers don’t run the quick hook on headcoaches, Cowher had 3 7-9 season in a row. They might fire Hailey though, the offense has been crap since he took over.
Tomlin is still depending way to much on players clearly past their prime, like Big Ben. Ben may still be one of the best quarterbacks in the league, but he's clearly not what he once was. And it isn't just poor protection, though that's a big part.