The truth is that you do have to make big decisions that leave yourself open to second-guessing if you are to be a successful leader, but when the move doesn't work out, you can't always hide behind the loyalty of your "team" as Belichick clearly has done. But then again, Belichick wouldn't have that loyalty unless he had some success.
Other articles:
About.com has some advice for creating a stress-free holiday season in the office
Some great articles from Human Resource Magazine including:
Enjoy!