The perfectionist boss can easily drive you crazy, spending time correcting others’ less-than-perfect work and agreeing to take on any and all projects. After all, no one can do them better than he can!
Workaround tips: Your best protection is a clear performance standard to which both you and your boss can agree. Otherwise, nothing you do will ever be quite good enough.
After ensuring that you are indeed being as productive and attentive to priorities as possible, you need to place the responsibility for prioritizing work where it belongs—with your boss.