Actually I think Tebow would be a good fit here IF he would play TE or H-back and just be the emergency 3rd QB. Problem is that he has it in his head that he wants to be a QB only. Say what you want but the dude's a baller and has the right attitude to be a Steeler.
If he was going to be the third quarterback he is better than what we have and might be serviceable as a number two.