[discostu]

I think the Steelers would have recovered it a little earlier than that. And there's still the emotional momentum of getting the ball via a turn over rather than a punt.

No the blocker cannot hit you in the back ever. The short version of the rule every coach drills into his player is "if you can see his name don't hit him". Blocks in the back are dangerous and cause injuries, this is why they're against the rules. As far as the NFL is concerned if the only way you can stop a guy from tackling your teammate is to hit him in the back then you should have gotten better position earlier in the play.

[roadking95th]

what is the emotional and game momentum damage of getting called for several ticky-tack fouls and not your opponent. The nail in the coffin was Hasselback getting called for the personal foul.

As far as blocks in the back, did you ever see a gunner over run the punt returner? He usually gets creamed from behind. I got a new defense for you. Have your entire D-line stand backwards. The O-line can't touch them and once the LBs tell them which way the runningback is going, 'cause he can't run up the middle, they could then turn around. Also, if a defender does a spin move to try an elude the blocker and the said blocker blocks him, is it a clip?