How well you play in a game depends on how well you practice. The game is simply executing what you have practiced during the week. Imagine never practicing and just showing up and playing in a game. The chances of winning would be pretty slim. Every great coach is a firm believer in fundamentals.
Technique is the medium through which power is expressed.
The better the technique an athlete has, the more power he can generate when executing a skill. You cannot have one without the other. A great athlete has the ability to generate high power and express it effectively through good technique. Strategy is a general game plan based on the team's offensive and defensive philosophies. The philosophies are determined by the head coach and the type of athletes on the team.