From the article linked in the OP:
"Early beep tests (10.7) suggested a query on endurance, although that was from Rich's time at the AIS in January, 2007.
He has since increased that test to 13.01, which while passable is a fair way from the elite midfield runners. "
LOL, skipped over that
mmmm, I thinks that's a little worrying, especially for someone who is a full-time midfielder.