We believe the Gospel changes people, and people change the world. You see I really believe the reason why we don't see more transformation is because we haven't really been transformed and changed by the Gospel.
When Paul is urging the church to imitate him, he's saying yes there is lots of great information you can get out there, but you need a father. You need to stand at my shoulder, because you can't be what you can't see.
What Jesus did with His 3 years of ministry was invest in a few, entrusting the message to 12 men. There was no Plan B to his master plan for world evangelization. There was only 1 plan: Disciplemaking.