Managing a proffesional Drupal company, or any webdesign company is definetely a hard task. There are always many ways where things can go wrong and one day you can realize that your succesfull company that you dreamed about has disappeared in the mixture of unhappy employees, not satisfied clients and a shame from doing things simpy wrong.
Images from sxc.hu
Learning from the experiences of others can be very beneficial if you are willing to learn and make changes to the way you do things. There is a saying in my country that a wise man is learning from mistakes of other people, while a fool is learning from its own mistakes. I was lucky enough to be one of the few hundred people that were able to squeeze in to a fully packed room on a DrupalCon San Francisco session where owners, founders and managers of some well established Drupal webdesign studios shared their experiences, things that they did right and things that were completely wrong.