PAS and OD is what pops out to me along with handling. I would get in 3-4 weeks of OD, 4-5 weeks of passing and then move into a lot of 1v1 training. You could even go only a couple of weeks of OD depending on how much you value it but in my opinion, the more OD the better and since Henryk is only 6'5" he is either a short PF or a SF so he should get a bit more OD in him. Passing is the biggest concern, but once these holes are filled in a bit, they look really nice.
Murray/Harris/MPJ/Grant/Jokic - 2020 NBA Champs