You will outgrow people...and that's OK.
Not everyone who starts with you will finish with you...and that's OK.
It's OK for people to 'get off of your bus'...some of them simply came aboard to help you learn something, and now their job is done. Let them go.
It's OK for you to kick someone off of your bus...naysayers must go; they are of no help to you.
If you succeed, it will be, in part, because of the people with whom you have chosen to surrounded yourself.
If you do not succeed, it will be, in part, because of the people with whom you have chosen to surrounded yourself.
Other people are a part of your equation, but you are ultimately the one making the decisions for YOU.
Hang out with people who fit your future, not your history.
The moral of this short story? The decisions you make in regards to the managing of other people in your life is an integral piece to your success. You can't do it alone, and you can't do it with people who are not "right for the job." Pay attention to what others bring into your life - keep the ones who push you to be a better person; the ones who continually keep you in the same place? Drop them off at the next stop.