The high school coach, Henry McDonald Messam, noticed his interest and reluctance to participate and so assigned him various tasks and chores to keep him busy.
Mills was quickly reinstated at the school and went on to train many successful sprinters, including Olympic silver medallist Raymond Stewart.
During his time as a coach in Jamaica he has worked with a number of Caribbean athletes including Yohan Blake, Aleen Bailey, Xavier Brown, Leroy Reid and Kim Collins.
The acceptance of the request paid dividends for both sprinter and coach as Mills was impressed with Bolt's new drive and focus in training.
[4] By the end of 2007, Mills was pleased with Bolt's performances and the coaching had improved his technique, particularly with a more efficient stride frequency and better balancing.
He said other prominent coaches deserved a chance at undertaking the position and decided he wanted to focus more on his Racers Track Club team.
[10][11] The athletes were later revealed to be Yohan Blake, Marvin Anderson, Allodin Fothergill, Lansford Spence and Sheri-Ann Brooks, who all tested positive for the stimulant Methylhexanamine, a compound similar to Tuaminoheptane, and were subsequently banned for three months by the Jamaica Anti-Doping Commission.