Instead of replacing resigned coordinator Ed Rush, the Pac-12 has blown up its officiating structure.

Five days after the release of a league-commissioned investigation into its officiating program, which found Rush improperly prodded his officials into closely monitoring Arizona coach Sean Miller, the Pac-12 announced it would form an alliance with the Mountain West Conference and other Western Division I conferences.

Essentially, the alliance means the Pac-12 and Mountain West officiating will be overseen by current Mountain West coordinator Bobby Dibler, while the West Coast Conference, Big West and Western Athletic conferences will have different oversight but similar training structures in the interests of consistency.

Since officials are independent contractors, many of them work more than one conference anyway. Scott said Mountain West commissioner Craig Thompson mentioned to him shortly after he became then-Pac-10 commissioner in 2009 that there was a need to collaborate and, after Rush resigned in April, Scott found the “timing was right” to do so.

Read more about the Pac-12, Arizona and officiating in Saturday's Arizona Daily Star.