Wagner opened fire on Russian forces. Shot down helicopters and apparently at least one transport plane. That’s a lot for just playacting. No pretense would be needed to replace a general in wartime. It’s a common occurrence throughout history, and Putin wouldn’t need an excuse either way, since he answers to no one in the Russian government. As to the statement that neither Putin nor Prigozhin are stupid… Well this entire conflict has provided an enormous amount of evidence to the contrary.