I think it would be more clear if you thought of a company in terms of disjoined silos rather than a large single thinking machine. One division (silo) needs to cut from their P&L while another just got the green light to expand. More than likely they don't talk to each other in large companies. At best you have a VP or SVP a layer or two up that controls both. That person just dictates what the silos need to do and doesn't concern themselves with the how (retraining).