After interviewing a handful of candidates, the Atlanta Falcons hired Jeff Ulbrich for their defensive coordinator vacancy last week. The team held a press conference in Flowery Branch to introduce Ulbrich on Monday morning.

There is at least one known candidate for Las Vegas’ first defensive coordinator under new head coach Pete Carroll.

Cincinnati Bengals head coach Zac Taylor introduces new defensive coordinator Al Golden at Paycor Stadium. Golden was hired last week after the Bengals fired former defensive coordinator Lou Anarumo. Anarumo is now the defensive coordinator for the Indianapolis Colts.

Penn State’s previous defensive coordinator Tom Allen unexpectedly left for Clemson on Jan. 13. The ensuing 14-day stretch as Franklin searched for a replacement took plenty of turns, but the Nittany Lions' head man has always admired Knowles from afar and hoped to bring the Pennsylvania native back to the state.

Notre Dame football offensive line coach Joe Rudolph worked with Chris Ash at Wisconsin for two seasons, coaching tight ends.

Knowles would join James Franklin's Penn State staff after three seasons at Ohio State, where he won a national championship.

Bryant Haines was the first assistant in Indiana football history to make more than $1 million a year, and he delivered results that drew interest from CFP teams.

Penn State announces Jim Knowles as its new defensive coordinator, one week after Knowles helped Ohio State to the national championship.

Bears coach Ben Johnson's staff is taking shape as he prepares for his first season at the helm, as Chicago hired Declan Doyle as offensive coordinator and brought in Dennis Allen as defensive coordinator,

The Chicago Bears recently got their new head coach in Ben Johnson. Now they have two right-hand men for Johnson, on Sunday hiring former New Orleans Saints coach Dennis Allen as the team's new defensive coordinator,