Here are his three with a fourth of my own added. Flow will be greatly enhanced by efforts to make the service seamless. Transitions are a common lurking place for dead spots. Eliminate extraneous speaking and music. But it is time and effort well expended.
Nothing kills a worship service quicker than a distraction.
Granted, some distractions cannot be avoided. But most can. This is why guidelines for protocol for all involved in worship are being drawn up and distributed. This is why we will soon begin to script our services. With their absence, our people will be better able to enter into a worship of a God who alone is worthy of our praise.