Executives leaders and managers have limited time in the pursuit of their assignment such that they must learn not to do everything, priority is key, and delegation is not negotiable. Learn to delegate, do not delegate and direct your delegate how to think and do the work, just give them the principle and the instruction and leave the process to your team, do not micromanage your staff. Leadership and management is a serious business, not everything deserves your attention in the office. You are not a Superman( woman), know your limitation and leverage on the abilities of others and increase their response abilities.