Do the simple things well
It's amazing the results that players can get when they never skip steps and do the simple things well. The simple things are often the fundamentals of the game that players have total control of (communicate loudly, stay in an athletic stance, keeping hands active on defense, catching shot ready, peeking at the rim, sprinting the first three steps in transition, box out, etc.)
Simple doesn't mean easy. We sometimes forget that if it's easy to do, it's also easy not to do!