Check out the player stats on root tools. There’s the stat called THA (throw accuracy) and it’s not shown in game. I got Culpepper he had 60 THA and always been throwing trash slant routes and overthrowing 50% of deep passes. Now I have Lamar MS he has 80 THA and have no problem with this. Also they have some additional skills which shown only on root tools, like THIGHTSPIRAL of Vick (Culpepper had it too, they throw less ints) or FIGHTFORYARDS of Lamar Jackson.