McGee wrapped his second season with the Blazers this fall with a 2-10 record. He finishes his UAB career with a 5-19 mark, including 3-13 in Conference USA.
McGee was as an assistant at Arkansas from 2008 through '11, serving as offensive coordinator under Petrino the last two years. In 2010 the Razorbacks' offense finished ninth in the nation, averaging 482.5 yards per game.
It's not often that a coach leaves his job voluntarily to assume a coordinator role, but McGee's departure might point to the Blazers' struggles more than anything else. Since becoming an official NCAA program in 1991, UAB has gone 110-137-2 (.446) under four head coaches.
The Cardinals announced Petrino as the program's new coach on Thursday. Petrino replaces Charlie Strong, who left for the open coaching position at Texas.MANDEL: Louisville shows it has no shame in bringing back Bobby Petrino