what does age have to do with it?
if Roddick of all players can have somewhat of "variety" in his game why can't Mathieu?
It has nothing to do with the game plan part. Most of his previous coaches were old enough to be his dad. Not that there's anything wrong with that
Someone younger can be a change of atmosphere. (I have no idea how to explain my reasons in English
) I actually thought of DiP.
Roddick has THE serve. With that in the bag, you have more choices to play with.