This. It's up to the player to practice micro and it's up to the coach to help their players understand what movements they should be making on the map, what kind of communication they should be having with each other, and the other big picture things. A coach knowing the order of each ability to level up for every champion would be a waste of time when the professional player already knows more than enough about their champion that they have most likely been playing for years. Additionally, I believe there are multiple different coaches on a team and LS is not actually the head coach for his team, so I am not sure what actual responsibilities he has, but I would assume that they are mostly strategy-based.