F/o s are not inexperienced.
They all have different levels of experience.
In many cases due to seniority based promotion systems an F/O may have more command hours than the nominated commander.
All F/Os have demonstrated the necessary skills to continue the fight in the event of P1 incapacitation.
For you Net Jet Pilots how does your company delegate resposibility for customers and aircraft when away on an extended trip.
Or do you take it in turns.
When I flew "2 captains" in corp ops (small 6 aircraft operation) there was always an individual deligated with overall resposiblilty.