I first heard the audio of this short interview with Pastor John Piper about a year and a half ago. (Audio of the whole thing here.)
Apparently one of the pastors in the gathering took a live video of it. Enjoy it, and allow the truth to sink into your soul.
What then is Apollos? What is Paul? Servants through whom you believed, as the Lord assigned to each. I planted, Apollos watered, but God gave the growth. So neither he who plants nor he who waters is anything, but only God who gives the growth. He who plants and he who waters are one, and each will receive his wages according to his labor. For we are God’s fellow workers. You are God’s field, God’s building.” (1 Cor. 3:5-9)
Also see Kent & Barbara Hughes’ book, Liberating Ministry from the Success Syndrome.