A big part of what I see my ministry being is training up worship leaders and pushing them to grow and stretch to be the best they can be. For many people, that is a difficult thing to do. Some think that if they push others to be their best, they might become better then them. Fortunately for me, that's my goal.
I love having a team of people more talented, more passionate, and more anointed than myself (and I'm not a slacker that is pulling punches). I heard someone say once that if you're the smartest person in the room, you're in the wrong room. The same is with leadership. Even in top leadership, you should always surround yourself with people who are more equipped than yourself. Insecure people will feel threatened by this, but people who want what's best for their organization, church, youth group, etc. will feel empowered.
This is why it is so important for me to spend time with other leaders, pouring into them, and at the same time, learning from them what they might have to offer. If your ministry is just about playing great songs and not discipling your leaders, you are missing a great opportunity. Don't be afraid to let others shine, because it will make you shine brighter for having the humility to share the spotlight.