2 Captains
Absolutely correct that 2 Captains not as good as proper well trained Captain and Co-Pilot. Only worse than 2 CAptains is 2 training Captains.
Well known accident about the G3 picking up George Busg Snr with 2 Captains (one about 68 and the other a youngster at about 63) Flew an ILS with the VOR tuned and followed the speed bug as a glideslope right into the ground. There last comment was something like "something does not look right!"