If you are a leader of any kind you need to be best motivator. Keep a thumb rule in you mind, different people develop at different rates. The best motivators always lookout for the hidden capacities that are best to come. As a leader more than getting laurels the biggest role is to find the best in others and develop it.
If ever you selfish yourself asks you not to do this have a look at history and remember that the best in the world where low or poor performers sometime earlier in their life. Albert Einstein could only speak when he was four years old and read when he was seven. Isaac Newton did bad in school and so did Thomas Edison. Walt Disney was fired by the newspaper editor as he had “No good ideas”.
As a leader the primary role is to develop every team member to his/her best. Always remember “The Best is yet to Come”