I see this brought up quite a bit. Just wanted to point out that after speaking with a couple people formerly in the program I know, as well as listening to former players on things like the Washed Up Walkons podcast, it's pretty clear Doyle's role in the program is a lot more than putting muscle on players. He handled so many different things other than lifting weights that the players do in the program.
Probably not the best way to put it in light of recent accusations, but he set the "culture" at Iowa. From the S&C stuff, to the books they read, to a ton of other small stuff. He was the one leading it, and looking back at it now, it's clear that many players, mainly black players, had issues with it. But he did much more than just having them lift weights. That's why he was the top paid S&C coach in the country, mainly due to the other things he was responsible for. Just wanted to make sure that is clear for everyone, not just you specifically.