"Mike" wrote in
oups.com:

The FAA at work

MEDICAL CERTIFICATION FOR UNMANNED AIRCRAFT PILOTS
Though it may sound like one hand clapping, an unmanned aircraft must
have a pilot -- just not on the plane. And someone has to worry what

More like part of a pilot/operator.
Current concepts envision pilots operating multiple UAVs.
If something were to happen to a partcular pilot this would
usually not be immediately catastrophic. There would in most
instance be time to insert a replacement at the control
station or hand off responsibility for the afflicted pilot's
flock to other operators.

IBM