You can't mandate that 6 players will play (or 5 or 7 or 8, etc.). If Moore is going to "mandate" such things, he might as well fire Gottfried and coach the team himself. Also, to say "ban the High Post offense" is not an acceptable answer, either. There's nothing wrong with the High Post offense if it is executed correctly -- we're not seeing the real High Post offense, period. But again, if you're going to mandate an offensive style, you may as well fire the coach and do it yourself.
What Moore can mandate to Gottfried are things like
1. Players will give full, consistent effort, or they won't see the court,
2. The offensive end of the floor will be characterized by obvious, crisp execution and by plays/sets that get players open looks at the basket by utilizing the court, the other offensive players (and their strengths), and the defensive players (and their weaknesses),
3. The defensive end of the floor will be characterized by intensity, regardless of philosophy (zone or man, full-court pressure or half-court pressure),
4. Proper rebounding will be obvious on both ends of the floor,
5. A plan will be in place to recruit players that will minimize holes in talent and ability, and
6. Discipline won't be an issue.