I think Snyder initially gave Klieman a long leash. Then, after Arkansas State, he officially notified Klieman that he'd be assuming the role of Puppetmaster. Snyder remained Puppetmaster through the KU game and, for reasons yet to be uncovered, not after that.
100% agree that the big question now is who, if anyone, has been Puppetmaster for the past three games (all losses btw). I'll throw just one name into the mix. Ron Prince.