Sorry, John Piper, "Ministry should have a masculine feel" promoter. But you are dead wrong. And if men continue to push the masculine model of ministry, the men leading and pushing it will end up dead last in the Kingdom of God if I understand the words of Jesus properly. "The first shall be last and the last shall be first."
Here is a blog post by Jenny Rae Armstrong that discusses how she has done ministry both by the feminine model AND the masculine model and how they compare.
Women in Ministry Series: Why Ministry Should Have a Feminine Feel