Matt T. is a great example. There came a point when you didn't know what HLA was supposed to be. Was it a mental health facility which would have been good for Matt? Was is a youth detenetion center which would have been good for sociopath type kids like the child of one of the plantiffs in the law suit? Or, was it a TBS for kids who needed extra structure but could basically do well as long as they had a little help?
When you mix all three of those together it is impossible to have a successful school/program. That solely falls on Len, though he basically told his staff to make it work.