One of the big questions people asked after this year's world championships is how track and field would move on without Usain Bolt. The legendary sprinter, who has been the headline name in the sport for the last nine year, is now officially retired. It is not just his performances that the sport needs, but the void created by his entertainment skills will be even harder to fill. Directly after the World Championships IAAF President Sebastian Coe told the Daily Mail that personalities have slowly become a rarity in track and field and we need more characters in our sport. I couldn't agree more.