Whoever took over for Bill Belichick was going to have a nearly impossible task.
Beyond Belichick's six Super Bowl titles with the New England Patriots, his poor personnel moves in his final few Patriots seasons left the franchise with a talent-deficient roster. The next coach was going to likely lose a lot of games on a franchise that got used to winning.
Jerod Mayo was in a no-win situation, and it wasn't a surprise when he came up short with a 4-13 record, fourth-worst in the NFL. It was a bit of a surprise that his tenure lasted just one season.