DeYoung advocates a simple model for this stuff, as you can probably tell from the titles alone. Reaching young people is primarily about Christian living, not church aesthetics.
The call to holiness is a big part of this. After quoting 2 Pet. 1:5-8, DeYoung says:
Did you pick up on the promise in the last verse? If we are growing in faith, knowledge, self-control, steadfastness, godliness, brotherly affection, and love, we will not be ineffective ministers for Christ. If ever there was a secret to effective ministry, these verses give it to us. Grow in God and you’ll make a difference in people’s lives. If nothing of spiritual significance is happening in your church, your Bible study, your small group, or your family it may be because nothing spiritually significant is happening in your life.Ouch. That last line stings, which is probably an indication that it is true. I would suggest that DeYoung is on the money here, and what's more, that the rest of the Bible makes that much pretty clear. Here is a theme that has been constant in my life of late: what God wants most from us is daily faithfulness. When we get that right, he'll use us.
In any case, here is DeYoung's conclusion:
The take home from all this is pretty straight forward. The one indispensable requirement for producing godly, mature Christians is godly, mature Christians. Granted, good parents still have wayward children and faithful mentors don’t always get through to their pupils. But in the church as a whole, the promise of 2 Peter 1 is as true as ever. If we are holy, we will be fruitful. Personal connections with growing Christians is what the next generation needs more than ever.Be sure to read the whole thing.