Garrett did not hurt his chances to be HC in Dallas.

Garrett certainly didn't help his chances in my eyes either. He made several huge errors -

1. Accepting the penalty on third down, giving Brees another chance. You never give Brees another chance. He made them pay.

2. Garrett's D staff leaving Robert Meachem in single coverage on third and ten. The Cowboys gambled that the Saints would only throw short. Have they never seen Sean Payton coach?

3. Taking his unused timeouts at the end of the game. Bush league, they'd lost there was no reason to prolong the game.

Garrett made some major mistakes, had the Refs not helped him along it would've gotten ugly.