Do I believe theres a role for some work with a teacher? Yes, I do. But I think its more effective in the big picture when done close to the context of a partnership application.
I could agree with that. If there are things one might learn from the very experienced, things one might learn from the totally inexperienced, and things one might learn from peers -- surely one ought not to dismiss any of those learning opportunities out of hand.
Incidentally, I think the converse of your statement also turns out to be true: partnerships are more effective when a teacher is involved.