Marty Mornhinweg
Unsurprisingly, Marty Mornhinweg’s head coaching career started and ended with the Detroit Lions — as most head coaching jobs usually do. As an offensive coordinator, Mornhinweg headed offenses that routinely finished in the top 10 of the league.
As a quarterback coach, he churned out five Pro Bowl quarterbacks, including Brett Favre, Steve Young, and Joe Flacco. As a head coach, well, he was awful. He won five games in two seasons and once elected to kickoff in overtime after winning the coin toss. It didn’t take long for Lions fans to turn on him, as most Detroit fanbases do.