Once you become more than a clinician, your responsibilities become overwhelming and your support drops immensely. As an Office Manager (or even as an Office Assistant), you aren't paid nearly enough to deal with all of the constant demands of the job.
There's very little in terms of vacation time unless you're lucky to be in a center that's not busy, in which case you just won't have ANY hours come fall, and your schedule goes from full time to maybe 12 hours a week.
The corporate office makes things extremely difficult to manage, and is very out of touch with the demands of the job, and make constant changes which always serve to make things more complicated.
There's no guarantee of moving forward or up, and even when you do have possibilities, there's rarely follow through.
As an Office Manager, you have to deal with parents who don't realize that you're not able to be flexible with policies, so you spend a good half of your phone calls being yelled at despite having all policies laid out well in advance.