Years ago, my friend and missions director at Churchome, Joanne Ramos, was speaking to a crowd on raising children when she said something that has stuck with me ever since. She said:
Kids need infinite freedom within definite boundaries.
This same idea can be applied to your team with powerful results.
Provide the vision; provide the boundaries, then unleash your team. Give them the power to make decisions for the team/company/product/etc., within those boundaries.
It may seem like this will make you obsolete as the leader but the reality is that 10 out of 10 times your capacity will increase. The skill and power of your team will increase. Your position as the leader will be strengthened, and you will be more valuable to your own leadership.