roster (45 men) and play their starters late in the 4th quarter even in blowout games. So the league can minimize cost by designating all the QBs on the roster and 1 (maybe 2 factoring in an alternate) on defense. Given that college football can use a lot more players during a game, colleges would have to equip more helmets with that technology.

Unless the FBS schools are just going to play games against themselves, then every in DI, DII, and DIII will need to use the technology. I say that because currently there are DI-FBS vs. DI-FCS, DI-FCS vs. DII, and DII vs. DIII OOC games. From a competition standpoint I don't think the NCAA would allow 1 team to have the technology while the other team doesn't have it. So either both teams have it or neither team can use it in the game. Then there is the question on who is going to foot the bill to implement the technology.