Probably a multitude of factors. How often you’re in 2nd and long and also how successful you are on 3rd downs.
I think the Bills run on a 2nd and long mostly because the defensive look calls for a run and they’re trying to pop a nice run. I don’t really hate these calls, it’s more about the situation for me. I think there’s been 1-2 times I threw my hands up screaming WHY!