Firing the supervisor would be the first step. I beg to differ with you on one statement, real project managers and supervisors wouldn't put themselves in that position and they are not a dime a dozen. In fact it's hard to find a real project manager or supervisor because co owners and partners think the same way and most are leaving the business to know nothing kids. then the owners bring a real manager in to clean up the mess left by the kid who didn't know anything, but he was cheap.
This is CABL.com posting #160329. Tiny Link: cabl.co/mPR7