Im sure some of the socialists in labour could source some funding for the training if they wanted. It can’t make Starmer charismatic, so why would it have a different impact on RLB or Burgon.
I don’t think Rayner has ever been in the socialist group and at present she is completely on board with the centre left Starmer project.
Saying I could name loads more but can’t be bothered, reminds me of a few teenage (when I was a teenager many years ago) friends discussing their sexual conquests. If you think these great communicators on the labour left exist then name them!