USC coach Lincoln Riley has established himself as one of the top offensive coaches in the sport. The 39-year-old head coach of the Trojans was Oklahoma's boss when Baker Mayfield (2017) and Kyler Murray (2018) won the Heisman Trophy, as well as when Jalen Hurts went to New York as a finalist in 2019. Riley took over at USC last season and helped guide sophomore quarterback Caleb Williams to college football's most prestigious individual prize.

Simply put, he's a quarterback whisperer. So what would a perfect quarterback look like to Riley? That was among the topics discussed during his appearance on the "All Things Covered" podcast with Patrick Peterson and Bryant McFadden.

It starts with attitude, and Mayfield -- Riley's first signal-caller in Norman -- is the clear-cut winner of this game.

"I would say Baker's moxie and energy and how infections he was," Riley said. "And I would also say Baker's kind of memory and recall."

Riley, of course, said Murray has the speed factor. The starter for the NFL's Arizona Cardinals didn't run at the NFL combine or pro day in 2019. He did, however, reportedly post a 4.37 hand-timed 40-yard dash at Oklahoma in 2017 -- his redshirt sophomore year in college.