Training Management Pipelines?


Hi all,
I'm having my medical triage on Friday and I'm hoping to join up as a Training Management Officer. I've been told to research which pipeline I want to go into but I'm struggling to find any information. I can only find pipeline E which I believe is more Science related which is not my strong point. I am a linguist. Could anyone shed some light on the various pipline options for a TM please? Much appreciated.