Can't stand my sales manager..

I understand where you are coming from. I once worked in an office where our manager was the same way. She liked to micro manage and had to always be right. She had us doing things that were so petty, we couldn't focus on the bigger picture. It got really hard to work under her supervision. We finally went to higher up and explained that the work environment she was creating was actually keeping us from being productive and we were ready to give up.

They eventually appointed a new manager.

Sounds like your manager is someone who lets power get to their head, this type of manager usually sets themselves up for failure. If you have an unhappy sales force then moral is down, if moral is down then sales go down. Its an inevitable ripple effect and that manager actually gets themself demoted. There is an excellent thread on here you could print out and anonamously leave on your managers desk called something like "Do you have a checklist". Its fairly new and describes everything that an excellent manager is. Maybe that will hit home and he or she will try to improve themselfs. Good luck, power freaks are hard to deal with, been there done that.