Russo isn't overrated because nobody likes him.
I'd be fine with it, we get enough stupid shit in the product nowadays that adding Russo can add at least a few good ideas to the product. Plus he doesn't have to manage all the egos backstage and push all the "ratings draws" that he did in TNA.
The problem is Vince being his filter, will he let Russo's good ideas die by the wayside?
If nothing else, why not use Triple H? Judging by how NXT is being booked he's their best option (granted, with NXT they don't have to appeal to mass audiences, do PPV hype, manage card structure, etc, but it's still worth a shot) and Koskey too ofc.