One day three years ago, Jake Coker’s job attracted a television audience of more than 26 million. As the University of Alabama’s starting quarterback, he threw two touchdowns to help the Crimson Tide beat Clemson University in the national college football championship.

On Monday, when Alabama and Clemson meet again for the title, Mr. Coker will be performing in front of a smaller crowd—a few regional business owners in Alabama. He will try to make them fans of property and casualty insurance.

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