Same said for Padoin who is in now Cagliari reserves. Common point of these 'players who can play in any position' is that they lack basic skills required to be a professional football player and have a natural position. So they work extra hard to compensate their weakness. Defending a striker this bad with ball for him running much is like defending the biggest clown David Luiz because he is scoring goals from free kicks.
messi can play right winger, cf, ss, and he's the archetype of false 9. ronaldo is a natural player on the left wing, but he's class as a right winger and a cf, too. prime vidal could play as a cb or a tq, he plays as a dm at bayern, and he's a natural b2b midfielder. del piero played as a cf and as an ss throughout his career, and he excelled at both positions. matthaus had also at least 3 positions (am, dm, sweeper/cd) and he was excellent in all of them. versatility is an existing thing among classy players, and versatile players aren't necessarily padoins.
as a pure winger, mandzukic is meh. to begin with, he's not fast enough to be a top class conventional winger. but allegri deserves all credit for mandzukic's latest 5-6 months: the guy defends like crazy (have you seen our matches against barcelona? imagine ribery doing mandzukic's work for 180 minutes...), holds the ball, his positioning, anticipation and tactical intelligence is surprisingly mature, it's safe to say that he's among our most important players at the moment. if we happen to win the cl this season, allegri's mandzukic will surely become textbook material as the first
b2b defensive winger.