we are talking about two drives here. the first i think they threw it every time, or at least twice. you run the ball every time you make them have either much less time or fewer timeouts.
You're really ignoring some important facts here. Let's look at the drives.The third-to-last drive began with the score
tied, the ball on the New England 46, and 5:23 on the clock. The first play was a 25-yard completion to Daniel Graham. Are you saying you think New England should have run it three times in a row and punted instead of trying to score?
After the completion, the Pats were at the 29 with about 5 minutes left in the game. They could have run it three times in a row, kicked a field goal and left the Colts with about 3 minutes left to drive down the field; do you really think that's a winning strategy? The winning strategy at that point is to try to score a TD; there's way too much time on the clock to be that concerned about keeping it moving--you're not even ahead yet!
So, they tried two passes, both incomplete, and then a run to improve field goal position, kicked a FG and went up 34-31 with 3:53 left.
After a failed Colts drive, they got the ball back with 3:22 on the clock at the New England 40, and got the 12-men penalty, so it was first and 15 at their own 35. Yes, they threw two passes--
short completions ending in the field of play! So in terms of clock management, coming into the third-and-four situation the timing was exactly the same as if they'd run the ball twice, except they managed to pick up 11 yards on two passes, so they had a short third down instead of third-and-long.
So, there's 2:30 on the clock, the opponents have two timeouts and Peyton Manning, you're up by 3, and it's third down and 4. Is your call really to run it into the line, not making a serious attempt to get the first down? You have to get the first; even if you let the clock roll there, the Colts will still have two minutes and two timeouts, or over two minutes and one timeout, needing to get a FG to tie. It is far more important in that situation to get the first down than it is to run clock.