A lot of people change for good. Some people just fall off. Just trying to progress in anything, no matter what you're doing, I feel like any progression you make... some people aren't gonna be around you that were around you.
You have to have the service mentality in the sense that you subjugate your own ego, and you subjugate a large part of your own life to really helping other people, being successful on their behalf.
Talent is a gift, but our character is a choice. Talent is natural ability, our gift from God, but we have the power to determine our character. That power rests on a foundation consisting of the choices we make in life. And those choices almost always dictate the amount of trust others have in us, and to what level of leadership we rise.