Eric Mangini has been fired by the San Francisco 49ers after one season as defensive coordinator, according to an ESPN source and multiple reports.
Mangini, who was promoted internally from tight ends coach and given a three-year contract, lasted only one season at the helm of a unit that ranked 29th in total defense in 2015. San Francisco stumbled to its worst season since 2007 with a 5-11 record.
Mangini is the latest departure as part of staff turnover that includes the offseason firing of one-year head coach Jim Tomsula and the subsequent hiring of ex-Philadelphia Eagles head Chip Kelly.