Well, I wouldn't say that he was a bad in the last season.. Couple of lower games and a poor mistakes in Ukraine against Chernomorets.
Other than that, he's changed his style of playing. In youth categories and two season in Red star he was side midfielder/winger. In 12/13 he was playing as RB, but was more like an offensive sideback, with a decent defensive skils. This season he started bad, he was really unsure most of the times, especially in attack. As matches were going he was more and more better and much more safer. I'd say he became much more stable in defence and much better tactically, with less job in the attack.
About DA, 78 is fine I think.
According to Transfermarkt he was playing RWB in those two games at Torino.