Another thing about the Nets missing Kyrie:
It essentially forces KD and Harden to play big minutes every night, because they can't afford to have both of them off the floor at the same time, and you do need runs having both on the floor too. With Kyrie, the workload can be distributed more evenly, and it'll give Durant and Harden more to balance their energy exertion, allowing them to play harder during key possessions on both ends. Durant is taking defensive possessions off because he's using a lot of energy on offense.