Putin finds it convenient (and perhaps crucial) to keep the military establishment "off balance" because it is the only entity in Russia that might pose a threat to his continued reign. Prigozhin's ranting furthers this need. Indeed, it is the generals - if anyone - who will tell Putin that the jig is up, that it is time to stop the war.
Wondering About Prigozhin
Putin finds it convenient (and perhaps crucial) to keep the military establishment "off balance" because it is the only entity in Russia that might pose a threat to his continued reign. Prigozhin's ranting furthers this need. Indeed, it is the generals - if anyone - who will tell Putin that the jig is up, that it is time to stop the war.
Alternatively: Maskirovka.