Being a coach is much more than the certificates or the diploma that you have. Such a profession calls for Emotional Intelligence or sports psychology to become an effective and successful coach or trainer. This is because Emotional Intelligence builds trust in coaching, and connecting to a social level is different. It makes it easier for you to motivate your trainees to keep pushing on, making you more effective.
Source: http://breakingmuscle.com/fitness/a-successful-coach-or-trainer-needs-emotional-intelligence
