Playing multiple guys because of injuries is one thing or if you have a Lanning type that gets a few plays, playing multiple guys just to play multiple doesn't happen.
Oh? Have you heard of Steve Spurrier? He used to do it regularly.
"Of the seven conference titles he won as a head coach, four of those seasons included some sort of quarterback rotation. For example, his 2000 Florida team won the SEC and prominently featured both
Rex Grossman and Jesse Palmer under center. Grossman finished the season with 212 passing attempts for 1,866 yards, while Palmer attempted 223 passes for 1,653 yards.
There were times during Spurrier’s Florida tenure that he rotated quarterbacks on nearly every play. Notably, he did so in a win over No. 1 Florida State during the 1997 season when
Doug Johnson and Noah Brindise flipped constantly under center.
"If you've got two who can help you win, and there's not much difference between them, why not play both of them?"
Spurrier told ESPN in 2015. "It's no different than any other position. At least, it never has been for me. There's nothing in the rulebook that says you have to play just one."
Unless Spurrier had a Heisman Trophy winner under center like he did in 1996 with Danny Wuerffel, who even split reps early in his Gators career, he usually felt the benefit of playing multiple quarterbacks outweighed the risk.
"We'd all like to have one quarterback who's clearly the best one and the team can get behind him," Spurrier told ESPN. "It doesn't always work out that way, and when it doesn't, sometimes you find out a lot more about those guys by the way they compete." --
https://247sports.com/Article/An-ex...-system-will-it-work-for-the-Notre-D-46888408