Some coaches "fall in love" with one kid while another one who might be as just good or even better gets little recognition. There are a lot of ways this can happen. A "legacy" kid with preferred last name, or a coaches/principals/school board/friends kid, or simply just a personality preference. I think this can be especially glaring in small school ball, but it can happen anywhere. College scouts don't care a bit about last names, etc. That, and they are just better talent evaluators overall than HS coaches and fans.