Okay. I'll bite and look at the Pac-12.
Arizona - Rod Smith played QB for Glenville State.
Arizona State - Billy Napier played QB for Furman.
California - Marques Tuiasosopo played QB for Washington.
Oregon - 2017 coach Marcus Arroyo played QB for San Jose State.
Oregon State - Brian Lindgren was an All-Sun Belt Conference QB for Idaho.
Stanford - Tavita Pritchard played QB for Stanford.
UCLA - Too lazy to search for who they just hired. 2017 QB coach was Jedd Fisch. Doesn't appear to have played football at the college level. His Wikipedia bio says, "He attended Florida almost solely for the opportunity to someday work for Florida head coach
Steve Spurrier.
[6]" His bio shows that he learned to coach QBs under a number of former QBs including Spurrier, Jim Harbaugh, Mike Shanahan and more.
USC - Tyson Helton played QB for Houston.
Utah - Troy Taylor played QB for Cal and the New York Jets.
Washington - The
Huskies staff directory doesn't list a QB coach so I presume Chris Petersen coaches them. That is his background as a coach and he was a record setting QB for UC Davis.
Washington State - The
Cougs staff directory doesn't list a QB coach. If Leach handles that himself then he would be only the second out of 11 who is not a former QB. Leach didn't play college ball at all.