That's part of the problem. Departments have to fund this resourcing themselves. Once they've gone to the trouble of establishing a pool and determining pre-qualified resources, the last thing they want to do is let other departments who haven't paid for that process draw from those pools.
That's the biggest part of the problem. They feel an ownership over the pool they've created because they've paid for it. I think there needs to be a better way to collaborate on the paying and the producing of those pools, so that barrier—