He got hired into a successful team with capable developers, all his "ideas" were failures or detrimental, he presented the outcome as success to the upper mgmt

He got hired into a successful team with capable developers, all his "ideas" were failures or detrimental, he presented the outcome as success to the upper mgmt and they believed him. No soft skills, no technical skills, just presenting the overachievements of his reports as success and easy life for years. And lots of coffee. He frequently completely bombards initiatives from within the team with bad faith arguments only to present them as his personal achievements a couple of months later. When it comes to the areas where the manager is supposed to be useful, like cross team communication, all the work is done by the devs.