I think they need to limit the number of clients if they don't have enough time in the day to return calls to reschedule appointments, etc. It can lead to burn out if they regularly allow their work to take up their free time. My T does not have the time during the day to answer the calls as he has a full load. He told me that he can spend a couple of hours a night just returning phone calls about rescheduling and cancellations. I could see that having to spend one's leisure time on business like that would be a drain. My T recently hired a scheduler who returns all the calls and organizes his schedule. He said that now he can't understand how he did all this for himself before. Plus, now he gets evenings free. That all adds up to a well-rested T in a good frame of mind, which is win-win for everyone.