There was a time when you were considered expert based on the years of experience you have. It’s no more a truth even if you could do everything yourself.
Leadership in the new world is all about being clear about what you want and why. It is quite a lot less about how to do it. The ideal way to deal with your staff is to provide them the training, give them the freedom to deliver the result, and help them get unstuck if they hit the bottleneck (if asked).
If you develop people with correct instincts and principles, they will make the right decisions. Probably better ones than you would since they’re the experts. If they aren’t, you aren’t giving them the information they need to do that.