Don't necessarily avoid sharp edges. Occasionally they are necessary to leadership.

Don't be a bottleneck. If a matter is not a decision for the President, or you delegate it. Force responsibility down and out. Find problem areas add structure and delegate. The pressure is to do the reverse. Resist it.

Be precise. A lack of precision is dangerous when the margin of error is small.

Your performance depends on your people. Select the best train them and back them. When errors occur give sharper guidance. If errors persist or if the fit feels wrong help them move on. The country cannot afford amateur hour in the White House.