Hmmmmmm..crew resource management training - for single pilot ops.....are you going to start arguing with yourself in the cockpit or undermining your own authority with snide comments. I suppose you can always sort out any cross cockpit gradient issues in the debrief.
But do you trust your crew? are they loyal to you or are they subverting your power as Captain. Ah... the loneliness of command.
Maybe Gollum does single pilot CRM courses.............