The reason: he was Johnson once. Allen, the Bears ’ new defensive coordinator, was a 39-year-old first-time head coach when the Raiders started their 2012 regular season. Johnson will be 39 when the Bears play their first game with him as their head coach.

We spoke with John Sigler of Saints Wire to give us a rundown on what we can expect from new Bears defensive coordinator Dennis Allen.

Dennis Allen was fired as the Saints head coach on Nov. 3 and will now run the defense for new coach Ben Johnson in Chicago.