Yeah, Xavi has apparently been excellent with his Qatar side, and won a bunch of stuff with them.
From what I know, I am not sure I would use excellent to describe his tenure at Al-Saad. He had the best team in the league by far and he won the league at his second attempt. In the Asian Champions league, his performance has been not that great despite having a very good squad. He is the logical fit in the Cruyff, Pep mould though.