FRISCO, Texas — The Dallas Cowboys made official Sunday night what they had already signaled: Jason Garrett is out as coach.

Garrett was informed he wouldn’t be back for a 10th full season on the same day the Cowboys finished an interview with former Green Bay coach Mike McCarthy, who won a Super Bowl with the Packers on Dallas’ home field nine years ago.

Owner/general manager Jerry Jones decided not to renew Garrett’s expiring contract because Super Bowl-winning quarterback Troy Aikman’s former backup couldn’t get the Cowboys back to football’s biggest stage.

At 9½ seasons, the 53-year-old Garrett had the club’s second-longest tenure behind Pro Football Hall of Famer Tom Landry, who coached the Cowboys for the franchise’s first 29 years before Jones fired him in 1989.