After all , Shane Williams ' best recorded 100m time is 10.8sec , which happens to be the same as that of Thom Evans , the former boy-band star on Scotland 's right wing who has been coached by Margot Wells -- the wife and speed guru of Allan Wells , the 1980 Olympic 100m champion from Edinburgh -- and who has spoken of challenging for selection as a sprinter at the Commonwealth Games in Glasgow in 2014 .