Develop independent workers
An independent worker is an effective worker. You want to develop your team to be educated about what they do, enthused about what the company does and empowered to best help customers.
You hold the authority to give them the necessary resources. Equip your team with proper training, excellent tools and adequate resources so that they can work to the best of their abilities. On your part, you also need to delegate work effectively and avoid micromanaging. If you don't let them run with their ideas they will never learn to fly.