Have an Idea of How Your Lineup Will Play Out
You need to visualize your strategy and what it's going to do.
- Is offlane going to rotate when they hit 6?
- Is your plan to get kills in the lane, then rotate the supports?
- How much support does your carry need?
- What is mid's role in this? (e.g. farm/semi-carry, push, get an advantage and then gank, etc.)
- Where will your supports need to be to make your lineup work? (e.g. gank mid early and often? Kill the offlane and guarantee carry farm? Pressure the enemy carry?)
You also should have a backup plan.