Three broad-based concepts:
- a game of passing and cutting
- movement kills defenses
- move with purpose
Here are a sequence of extremely simple ideas to illustrate:
Space
Ball reversal options
Pass and replace sets ups later actions
Add defense and move the ball. Initially no dribbling and no screening allowed. I would 'insist' that help side defender have at least a foot in the paint to make it more realistic (offensively and defensively).