It's a difficult one. I'll let Sally give her views. This is pure speculation on my part. Right now we have controls by capital, operating, grants and contributions, and we provide information by program. Effectively we'd largely be flipping it, so we would be doing controls by strategic outcome program-type structure but still tracking information on capital, operating, and Gs and Cs. I think ongoing it's hard to say there's an additional cost because we're really just switching the roles.
Sally may have a different view.