The Charlotte 49ers have begun a national search for their fourth head coach after firing Biff Poggi Monday night. Why it matters: The program is investing $70 million into expanding its football stadium.

Interim coach Tim Brewster, a longtime assistant at various levels, became the Niners’ associate head coach before this season under Biff Poggi, who was fired Monday by athletic director Mike Hill — before the conclusion of his second year at the helm.

After a 55-24 win over in-statement rival East Carolina Oct. 5, the 49ers have lost four in a row, with three of them coming by at least 30 points.