On Monday, the Buffalo Bills fired linebackers coach Chuck Driesbach.
Driesbach, 61, told Tom Moore of the Bucks County (Penn.) Courier Times on Monday evening that he was stunned by the move, saying he was called into coach Doug Marrone's office and given little explanation for his termination.
"[Marrone told Driesbach that] they just wanted to change the dynamic of the staff and they had to let me go," Driesbach told the newspaper. "He said I hadn't done anything wrong, shook my hand and I walked out of the office.
"I have no idea what happened. I don't know if they felt like I did a (poor) job or somebody better became available. I don't know and probably never will. It's the bad part of the business."
Driesbach, who coached for 36 years in the college ranks before earning his first NFL job this season, has ties to the defensive coaching staff. Driesbach served as defensive coordinator at Pitt from 1993-1996 and gave current Bills defensive coordinator Mike Pettine his first coaching job as a graduate assistant in 1993.
Pettine, Driesbach, and Bills outside linebackers coach Jim O'Neil all attended Central Bucks West High School in Pennsylvania. Driesbach also played for Pettine's father.
While he had no prior background with Marrone, Driesbach said he never had a run-in with the first-year head coach.
"[Marrone] never got sideways with me once," Driesbach told the newspaper. "He let me coach ... I gave my (weekly) reports and we agreed on everything. It's a little bit of a shocker."
Driesbach says he plans to continue coaching.
"The organization was absolutely fabulous," Driesbach said. "That's why it's so crazy. It was a great experience. I was treated wonderfully by everybody in that building, then this bombshell fell."