It didn’t take long for the Ravens’ first coaching change of the offseason, as former Secondary Coach Chuck Pagano will take over the defensive coordinating duties for Greg Mattison.

“We’re excited for our defense and for Chuck, and we’re happy for Greg Mattison,” said Ravens Head Coach John Harbaugh. “I will talk more about it tomorrow when we formally announced Chuck as our new coordinator in a press conference.”

Mattison will move to the University of Michigan, where he will be the coordinator under new Head Coach and longtime friend Brady Hoke.

Mattison, who succeeded Rex Ryan as coordinator in 2009, coached with Hoke under Jack Harbaugh at Western Michigan and under Lloyd Carr at Michigan.

In addition, Mattison’s daughter, Lisa, lives in Ann Arbor, Mich., and is having a baby soon.

Pagano brings a solid coaching record to the position.

He was last a coordinator in 2007 at the University of North Carolina under Head Coach Butch Davis.

With Pagano leading the defense and defensive backs, the Tar Heels improved from the nation’s 92nd-ranked unit to 35th from 2006 to 2007.

Pagano, who is beloved amongst his Ravens defensive backs, was key in keeping together a Baltimore secondary that has been depleted by injury over the past few seasons.

Last year, the Ravens finished eighth-overall in pass defense. And, with two cornerbacks coming off Injured Reserve – Lardarius Webb and Fabian Washington – and another (Josh Wilson) joining the team on Sept. 1, the Ravens totaled 16 interceptions over the last 10 games of 2009.

Pagano becomes the fifth defensive coordinator in Ravens history, joining a prestigious club that also includes Marvin Lewis, Mike Nolan and Ryan – each of whom went on to be head coaches with other teams.

The Ravens’ defense finished this season as the NFL’s 10th-stingiest unit, allowing 318.9 yards per game. They boasted the fifth-best run defense (93.9 yards per game) and 21st-best pass defense (224.9).

Baltimore also allowed only 16.9 points per game (third).

BaltimoreRavens.com has also confirmed that other teams throughout the league have sought permission to interview other Ravens assistant coaches and have been granted that permission.

BaltimoreRavens.com will have a live video stream of the press conference tomorrow.