When the USAF issued its RFP for a new long range rescue chopper, which to most people horror resulted in the H-47 being chosen, at that time I thought a combined manned/UAV approach would have been the way to go. Have smaller choppers, about the size of a H-60 and use a mix of manned and UAV versions as required by the mission set. Send the unmanned versions in to pick up the downed personnel if the LZ was hot and the crew to be recovered were mobile. If they needed medical help in the LZ, use the UAVs for RESCAP and fire support and send the manned one in for the pickup.
Instead they seem to have done the equivalent of a family saying, "Well, we move every 4 or 5 years so we need to buy a 18 wheeler to carry our household goods."