Lol. Mourinho played him at DM 12 times, whilst playing him 15 times next to Makelele. Mourinho wasn't the one who turned him into a CDM whatsoever. It was the likes of Scolari, Ancelotti, Grant etc. who decided to use him there afterward that made him so. And if Oscar were to move deeper he wouldn't become a CDM. I've told you this before, playing in the pivot does not mean you're automatically a defensive midfielder.