Stop delegating, start training
The central part of the manager’s job is people development. This includes people who want to become leaders like you one day. When you take on the mindset of a trainer instead of a manager delegating work, you will have created a team of trusted associates who can step in and help when you are overwhelmed or out of the office.
Read the full article here: https://hbr.org/2018/10/how-to-stop-delegating-and-start-teaching