So you are the head coach of a team that tied a franchise record for futility by losing 13 games last season and you're looking for a new defensive coordinator. What do you do?
If you are Minnesota Vikings head coach Leslie Frazier, you offer the job to a guy who coached for a team that was even worse than the Vikings were in 2011. Pure genius.
To be fair though, the Indianapolis Colts defence gave up fewer points in 2011 (430) than the Vikings (449) did. So maybe Alan Williams is the answer.