How To Grade A Coach: By Me
Grading any coach at any leval requires one to recognize certain things. These things are independent of style and actual wins and losses. It is tough to guage talent on a team, especialy if 1 coach is able to get lots of wins out of a particular team, while some other coach may be a bad fit.
It is rare, but it comes around, where you have some universally good coaches.
Things to consider:
1) Strategy: This is the chess player part of a coach. This is the game that happens before the game. Many games can be won and lost by a coaches ability to have a good game plan, and sell it to his players. Things like looking at tape, finding tendencies, or forcing your own will are all decisions a good coach can make before a game starts, that can make things much easier, or much harder on the players. It requies an intamate knowledge of your own personel for detailed strategy, but basic strategic philosophy can make a hasty difference in any given team, for better or for worse. Also the INTENDED game rotations are made by good strategic coaches.
2) Tactics: This is the in game part. This is my favorate aspect of coaching. While a good gameplan is a great headstart, a great tactician can make up for alot of sins. This is the ability to make adjustments durring timouts and halftime. This is the ability to recognize when the gameplan has gone sour, and the ability to recognize and adapt to the situation. Things like letting the hot hand go, inbounds plays, and timely time-outs and healthy player rotations all go into tactics. A great tactical coach will also have the dicipline to change things like player rotation if the need arises, despite his personal feelings.
Finally,
3) a coaches ability to strike a balance between selling his philosophy and adapting to his players. This one is key. The philosophy of a coach is irrelavent. Sometimes a coach just needs to leave a stamp on his team, other times he must recognize his teams limitations and strengths. If a coach can balance his ego with that of his players (doens't matter how, just if it gets done) than he can be a sucessful coach, even if his strategy and tactics are sub-par.
Wins and losses mean little. Championships mean a little more than wins and losses, but not by much because of the luck involved with having the right players at the right time. In the NBA in particular, only 1 in 28 teams have a shot at the title in the begining of the season (yeah, I know there are 30 teams *snicker* ) Even in a 30 year career by the laws of averages, some coaches just are never going to get a sniff at a title, no matter how magnificent the coach is. If their GM's don't give them talent, they can't perform.
Watch coaches. Watch them close. Not 1 game, not 1 season. Watch them over a few seasons, preferably coaching different teams, and you can get an idea of what traits are truely due to the coach, as opposed to the personel. And if you are impatient, and need to rank a coach now (I couldn't immagine why, but just suppose) than you can only really look at coaches who havn't had significant player change from the preveious coach, and see if, all other things equal, did the new coach do better than the previous one. And even this is flawed, because players mature, and teams coalesse.