It's tempting to tell a meddler to go away, but when they are the one that has the power to pull the paycheck...
Sorry for the rant, but this is my second time seeing the same person turn a mediocre performance into an awful one on the same project. If there's anybody here who does commercial work that ISN'T a professional director, please just let the actors and crew do their jobs. You are harming the product and costing everybody money by inflicting yourself upon them.