I try to give my contribution :)
- choosing a 2-3 tactic improves defensive rebounding
- as a result of the improved defensive rebounding, the AI tends to see that the current lineup is a very effective one for rebounding and so favours those players, as well as making adjustments that take advantage of the good rebounding
a) 2-3 zone improves the defensive rebounding of all players. I guess
the improvement is proportional to the skill. so...
b) Not the current lineup, but the players with better rebounding are seen by the AI as performing especially well. So...
c) The coach will play more players with high rebounding skill (among starters and rotations). So...
d) The team will have an higher rebounding skill overall and will perform better also offensively.
Moreover, the coach during the game makes in-game adjustments based upon what's going right and what's going wrong, and those adjustments again tend to increase the rebounding at both ends. This adds up to a smaller bump than you were getting in defensive rebounding, but I do think it adds up to a non-zero bump, and one that's a bit complicated to think about how to adjust, because what's happening in effect is that the coach is basically realizing that his team is rebounding well and is trying to take maximum advantage of it.
This is a similar story, regarding not the choice of the players but the tactics used.
Am I wrong here? :)