I'm sure Bob's CRM is excellent, and my flippant comment detracted from the serious point. In my opinion, issuing a threat, particularly a relatively unenforceable one, wouldn't help the teaching and learning environment much.
I have been in a similar position with a new syndicate joiner who I was checking out. In that case I saw the situation coming, and ensured that I had the syndicate chairman's backing to insist on further training to meet the required flying standards, and a list of approved (by the syndicate ) instructors ready. Not a universal solution, but it worked there.
G