He was talking about splitting minutes on offence and defence. For this to actually work, we should be counting minutes at offence and defence while set to play one position aswell. So 48 minutes might look like PG - 22 minutes offence, PG - 26 minutes defence. That's one game. Good luck getting 48 minutes for defence training. If you change something it should be implemented on all training. Perhaps lowering the minutes to 24 at defence/offence for full training. What happens when you get unlucky and log minutes below 24 on offence, because you played a fast offence and opponent was playing slow.
this 22 and 26 minutes game, would be the same in offense then. like playing 22 minutes SG and 26 minutes PG, else you wouldn't manage to get the minutes in defence.
So about managing minutes it won't change ... Ok it get easier to build a plan B, since you have the oppurtunity to have different training plans for offensiv and defensiv training.
main think i don't like at this suggestion, that it will lead to a lot confusion, when they change it for newcomer it should be easily understand(even when you could argue if rebounding is offensiv or defensiv)