seriously?
who is more agile? Garlett or cloke?
Some big men may be agile, for a big man, but smaller lighter framed players will generally run rings around them, literally, when it comes to agility.
simple laws of physics will tell you that more mass, that hardier it is to stop quickly and or change direction quickly.
@Hard Roar Tiger, not sure if you are taking the pee or not, but sprinters have speed, not agility. They run in a straight line from point A to B as fast as possible, which is not agility.