Player development:
As a measuring stick, this is an example that is hard to quantify and as VG points out will look different and mean different things to different people. Is a player getting better just due to player talent or help from coaches? Surely it?s both but the lower the perceived ceiling of that player and the more they achieve, it?s logical to assume coaching plays a significant role. It?s at least an example of non-negative coaching, ie the coach was not a detriment. This should also be measurable by seeing development players on the court, the coaches attempting to get the players experience.
Playing hard:
Again, hard to quantify and directly attribute to coaching as it?s the players performance being evaluated. But again, positive player attitude and effort doesn?t happen from bad/negative coaching. I think we can assume a correlation. However, effort can be perceived differently from a fan perspective and bias.
In game management:
This is direct coaching and certainly an area that Mazulla needs to improve on. Being flexible with strategies when something is not working. Easy to see when this isn?t happening, easy to ignore and credit the players when it does happen.
Wins/Losses:
Though it is arbitrary to assign overall record to coach success, I think if a person assumes a range of record for the team based on talent and the team out performs that range then either A) your evaluation was off or B) they were coached up. Most here could agree that if the team wildly outperforms expectations, say they win 50 games, good coaching is responsible.