It’s a bit weird their situation to be honest. They are giving him ALOT of control. Maybe the other shareholders know they have no idea what they are doing so they are passing the bill to the rich guy.
I think it's that and the fact that Glazer's don't really care. They just want it to make them money, which it will, but now they'll never be the ones blamed if the success doesn't come and if it does then it's even better for them.