Firstly, many thanks for the detailed post and thought put into your response. It’s good to hear some reasoning from another teacher.
In answer and in short, it’s the head. My wife has worked in the same school for all her 26 years and worked her way up to gain TLR and UPS3. However, the new head of 4 years is very driven and has bought a lot of previous staff from her old school with her and continues to do so. My wife feels very isolated now. The head also expects blood and very long hours with it. Being in our middle to late forties now, she just doesn't want it.
Rightly or wrongly, she has been advised by the head that if she wants to drop her TLR/UPS3, then she needs to either leave the school or drop to some form of basic teacher/assistant rate because she needs a committed management team? The head also won’t allow her to go part-time because she needs full-time staff/management around her.
She is now considering sick leave or waiting until the summer and not returning in September. The plan would be to go on sick until early next year and then quit, and register with a supply agency.
Whatever happens, it’s only money and I’d rather have a happy home. Cheers again mate, much appreciated