One of the things that I lean from Junki Yoshida's speech is being an amateur is not a bad thing. If you know too much, you often decide not to do things. Being an amateur (an ignorant) you do things that comes from your belief or your passion. Irresponsible? May be. But there is nothing wrong with thinking out side the box.
神戸のおいさん 
KUMA 
PSPCF 
内倉憲一 
bokushi 
橋本諭弥 
坂本祐央子（さかもとゆみこ） 
コーチ探せる 
Tetsuro Watanabe 
ClockLink 
落語好きプロコーチ 砂村よしお