Lee Strobel, author of The Case for Christ, The Case for Faith, and The Case for the Creator, addresses the problem of man-centered approaches to the Gospel in this article from Outreach Magazine.
Unfortunately, the emphasis on repentance seems to have evaporated in many churches these days. Instead, some churches attract people by simply telling them their life will improve if they become a follower of Jesus. The result can be false conversions—people who “sign up” for a better life through Christ, only to fall away when times get tough. They’ve never really come face-to-face with the depth of their own sinfulness and called out in utter helplessness to Jesus for forgiveness and mercy as the only alternative to spending eternity in hell. (Read the rest of the article here.)