We create a second clan, called [DPcadet] or something equally hideous.
We advertise that clan in game as the only way to join DP, and we recruit.
Active (and sociable) members of the current DP would take a small group of these cadets to train and monitor until they feel they are ready to enter DP.
We essentially cast a larger net than we otherwise could, and hopefully by doing so catch more minnows.