The best way to avoid eating too much candy is to not have it around in the first place. Don't have it in your pantry. Don't have it on your desk. Don't buy it at all.
When you don't have to make the decision, you can't make the wrong one... because you've already made the right one.
The same is true as we lead our teams. There are many decisions that we can eliminate all together by putting a process in place. If we can free up brain space by making a decision once that will continue to pay dividends, we probably should.