My nikka are you this thick..?
Every coach comes in with a set lineup,some set plays, and a set rotation
Based on what happens, They might have to change these set rotations, plays and lineups..
the one who fails to react accordingly based on the matchups that are occuring, based on the way the game is being called, and based on the way the his player might be/not be performing is the one who is getting outcoached.
It's not a hard concept to wrap your mind around.
For Example, Avery Johnson in 07 got outcoached by don Nelson because Don Nelson took advantage of the pesky defenders that he had that matched up well with dirk and don nelson knowing Dirk negated a lot of his attributes this way, Avery failed to change his lineup or the way he ran the offense through dirk into a more balanced attack, and we lost...he got outcoached.