I've run across Sean Bell a few times since we served together on London UAS. He always struck me as being a gifted pilot, an intelligent, decent, honourable and switched on officer, and as a most capable operator.
He was always an example of the kind of chap one would have hoped would reach senior rank, and who seemed to be an exception to the anecdotal rule that so many blokes who might have been a lion in the cockpit, a great Squadron CO or a great Staish then become administrative mice when they are promoted beyond that point.
I hope that this doesn't disadvantage Sean, as he's a bloke who ought to go further, and whose further rise would be a good thing for the service, and for the country.