Dallas Cowboys coach Jason Garrett is as conservative as a blue blazer, gray slacks and black wing tips.

It's time for a change.

Garrett should try wearing Robert Graham shirt -- the more colorful the cuffs, the better --- and a pair of designer jeans from a consignment shop in the Bishop Arts district.

Jason Garrett needs to show his team that, without a doubt, winning is all that matters. Matthew Emmons/USA TODAY Sports

For Garrett to keep his job as coach of the Dallas Cowboys for more than one more season, he must leave his comfort zone and the conservative approach he's used with the Cowboys and be bold next season. Understand, this ain't about trick plays. Or going for it on fourth down. It's about a mindset that shows his team winning is all that matters.

Garrett must have the self-confidence and courage to make a bold move when the opportunity presents itself. That's the only way Garrett can remove this once-proud franchise from the muck of mediocrity. Garrett can look to each Super Bowl team for example.

San Francisco coach Jim Harbaugh benched Alex Smith, then the NFL's top-rated passer, for Colin Kaepernick, who had never started an NFL game. At the time, San Francisco was 6-2. But Harbaugh knew Kaepernick could take his team and his offense to heights Smith could never achieve, so he benched Smith.

Baltimore coach John Harbaugh fired offensive coordinator Cam Cameron after a 9-4 start because he recognized the team's stagnant offense wasn't working even though the team was winning. Then he promoted Jim Caldwell, who had never called plays in the NFL. Caldwell's aggressive and creative play-calling is among the reasons the Ravens beat San Francisco to win their second NFL title.

The Garrett we know would never, ever make either of those moves.

Think about it, when is the last time Garrett made a bold move with his lineup? Or coaching staff?

You can't.