Luftwaffels didn´t claim Lugano is a midfielder, he posted IN: Lugano, Marchisio, Giovinco, Hamsik which means that these are the players who will join Juve.
First time I saw him was in the match PSV Eindhoven vs Fenerbahce about a month ago.
I couldn´t judge his performance though as I have seen only the highlights. So, he remains a question to me.