An interesting thread,
Another issue connected to it is that of CRM. If a captain moves to the right seat to continue for another couple of years, especially if he/she is a training captain with considerable time and experience under their belt, he could be the best asset a captain has, or conversely could be the worst nightmare! It's down to individuals I guess. Should be interesting to see when it happens. (My employer has the first one in a month or two)
PP