Carroll 100% got out-coached at the end. The buck stops with him. With the Patriots defense on the INT play, there is NO WAY on earth that play should have ever been run. You call TO. You audible, you throw the ball away, you do anything but that play. Patriots had the PERFECT defense for that play. Hoping Browner and Butler get caught up in a pick play, and Butler can't make a play on the ball? Was that the plan?
And I blame Wilson almost as much as Carroll. Go watch that play. Wilson had his eyes on the receiver the entire time. His head/eyes were locked on from the snap. Butler had a line on that pass before it was even released. If you want the arm movement of Wilson in slow-mo, when his arm is cock halfway, Butler starts his break. If you are going to run that play, at least maybe give a quick head fake to Lynch to maybe get Butler's eyes off yours. But Wilson just telegraphed that pass the whole way, and the only surprise there would have been if Butler didn't intercept it.
So Carroll gets the most blame, but Wilson should have called TO or threw the ball away. Carroll may have been mad, but he may have saved them a SB title.