Nothing more infuriating for a knowledge worker, than duplicated effort. No one likes a 'silo' either. That said, if someone has a proven track record in an a

Nothing more infuriating for a knowledge worker, than duplicated effort. No one likes a 'silo' either. That said, if someone has a proven track record in an area of expertise, it probably makes more sense to organise around them and move overlapping resource on to some another area of responsibility, if only for productivity's sake. It would only be a bad idea, if no one was allowed to review or challenge the work produced by the aforementioned expert... Who knows. We only have one side of the argument here. I'm sure he'll find a better environment for himself very soon.