IIRC, when xavi came on as a sub last season he basically brought life to the games in the first half of the season. I can see Xavi coming in knowing what to do in the second half, and make tremendous through balls or just try to shake the buses.
I think he mentions Ronaldo (fenomeno) as the GOAT. Would make sense, he was the traductor of his time as an asst. in Barcelona, and the brilliance of Ron in 96-97. Could be wrong though.