REFVA...
I'm heading into my 7th year...I mainly work Jr. High and some summer HS/AAU stuff at a local facility that runs hoops year round.
I would say like any job, yes, burnout can be a factor and it most certainly can show up on the court. I had 8 games this weekend, 5 which were yesterday and by game #5, I was admittedly DOG TIRED...Both physically and mentally and I'm only 35 years old.....You've probably been doing this longer than I and don't need me to tell you that!
I think the important thing here is to be cognisent of it. I was asked to take on a 6th game yesterday and I had to tell the guy I just couldn't do it. I was mentally spent after the last two games and having tendonitis in my knees, the physical demand was just more than I wanted to push myself.
In your case, sounds like it could be a case of "head trash" by the evaluators/assignors? Perhaps their "head trash" about you from previous seasons is limiting their ability to see you as a new man?
Just my $.02