My partner, Mike Doughney,and I wrote a brief summary on some of the Teen Mania basics here about half way down in own article "Your Assumptions Will Not Save Your Skin". starting with

Lately much has been published on Teen Mania's "BattleCry" campaign.

Specifically, see this-

The purpose of Teen Mania, and the "BattleCry" campaign, is actually quite simple. Baby boomers have been building churches, Christian institutions, parachurch ministries, and businesses over the past few decades, and they fear, correctly or not, that they face a period of decline and fall due to changing demographics. They see a need to aggressively set the conditions such that today's teenagers will become involved with this subculture and stay inside it for the rest of their lives. The desire to live and make a living inside this subculture full-time, interacting with the secular world only on their terms, may be one of the primary drivers of this movement. For this and other reasons we cannot expect it, like other industries past their prime, to go out of business and quietly fade away. (Much of this is evident in Teen Mania's own promotional materials aimed at churches, like this one.)