It's the 3rd quarter and you have a 29 point deficit to make up... how much time came off the clock before the D got you the ball back? I'll tell you how long it was... 5+ precious minutes.
The Broncos are on the Seahawks 38 yard line and there's 11:25 left in the 3rd quarter, so they're 26:25 away from losing the Superbowl... if not now, when?
By the time they get the ball back 5 mins have come off the clock and they're still in a 29 point hole, so is it time to start going for it on 4th down now?
At this point the Seahawks are running the ball because they know the clock has become a factor, I guess Fox didn't get the memo.
What was the 3rd down play on 3rd and 10 that lead to the punt on 4th and 11? It was a DRAW PLAY. So how many draw plays did they run? You don't really want me to go back and count, do you? Forget going for it on 4th down, Fox wasn't even going for it on 3rd down!
If you trust your defense enough to punt and get the ball back (5 mins later) when you have a 29 point deficit to make up in the 3rd quarter, why don't you trust them enough to go for it on 4th down and get you the ball back?
There was 11:25 left in the 3rd quarter when Peyton last touched the ball, now there's 7:05 left, so more than a third of the 3rd quarter has gone by. At 7:05 we finally get the ball back in Peyton's hands and guess what... THEY RUN ANOTHER DRAW PLAY (that's two draw plays and a punt from the opponents 38 yard line while 5+ mins ticks off the clock).
I could keep going but I think I've made my point... any questions?