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Jerry Jones figured that since Jason Garrett spent so much time on the sidelines as a backup to Troy Aikman, he must have soaked up large amounts of coaching wisdom.
Jones was wrong.
The Dallas Cowboys have only spent one full season under the guidance of Garrett, but that may be enough.
Tony Romo takes the brunt of the blame for the Cowboys blowing large second-half leads. Yet the play-calling shouldn't put a quarterback known for choking in a position to determine the outcome.
Additionally, there is the icing-his-own-kicker fiasco.
The Cowboys were lined up to take the game-winning field goal against the Arizona Cardinals when Garrett called timeout. The players weren't aware of it yet, so they snapped the ball, and the kick was made.
When the team went to repeat the kick, the icing effort had its undesired effect. Dan Bailey wasn't able to convert a second time.
Lastly, the man lacks the gumption to admit failure, learn from it and move on with a rededicated focus.
For example, Garrett didn't classify this season as a failure for not making the playoffs with a stud pass-rusher and a quarterback in his prime. Instead, he declared it a "rebuilding" year.