It’s difficult to do, but the more an adult can focus on a small number with concentrated effort, the greater the accomplishments. Only focusing on the mass number with a general effort will have less effect.
Check out Tyler Staton’s article at Qideas, “Discipling Urban Youth”. You can read the entire article here.
“I met a few non-profit types and teachers working directly with inner-city high school students that were kind enough to invite me to participate in what they were already doing; to enter into the relationships with families and students that they had already invested years in. I quickly began getting to know three students, in particular, and had immediate influence in their lives for no apparent reason.”