How to deal with a Gate Keeping Manager

I have been on a new project for 6 months, the manager is new to Deloitte and only there for 9, everyone on my team has been there at least 5 years and 9 for myself. This project is controlled chaos at best, and our manager gate keeps. Anytime we have to ask another person outside of our team without their knowing they always has to say something like, I don't understand why you did that, and you should not have done that. I cannot understand what you are thinking. This is getting out of hand. I feel like he is trying to keep everyone dependent on going through our manager. This always happens when we are filling our manager in, frustrating when something you have done on every project for 9 years was applauded and now it is frowned upon. Any advice?