To sum up, a real coach refers to the trainer, mentor, and supporter who helping everyone in group to unlock our potential. Moreover, coach must understand own work first. Then, coach has to understand both the strengths and weaknesses of yourself and each coachee also. For example, each coachee person has difference background, difference level of learning. If coach better understand about the nature of people so coach can achieve goal and coachee can unlock potential to do this work as well.