And there's something more at stake here. What Reveal also shows is that the more people had matured and become Christ centered, the more likely they were actually to leave the congregation altogether!
That is, the black box actually has the opposite effect of what it claims. Instead of making Christ-centered disciples, it often tends to get rid of them!
That's why before we leap to conclusions about what to do instead-- and thereby perhaps actually substitute one black box approach for another-- we need to spend some time first in examining and naming all the ways where we still apply "black box" thinking to our lives as disciples of Jesus and our work of discipling others in his way.
So... to begin that process, two questions.
1. Where do you find yourself or your worshiping community falling or falling back into black box thinking?