Well, he's not the type of a player that will have some great statistics, which doesn't mean he wasn't great.
But you see, players like Sissoko and Gattuso can have great season but the stats don't show that. The same is with Melo.
He had 1224 successful passes (out of 1489 passes). That's much better than any Juve player (the best passer last year in Juve was Nedved with 893 succ. passes out of 1079) but compared to D'Agostino it doesn't look great, although Melo has a better ratio. (D'Ago had 1671 successful passes out of 2141).
Melo won 76 tackles (the best in Juve was Molinaro with 85, while D'Ago was the best in the league with 109).
He was great in intercepting passes (which shows good movement and good positioning). He intercepted 113 passes. The best in Juve in this category was Molinaro with 96 intercepted passes, while D'Agostino had 93 intercepted passes.
He made quite a lot of fouls. 90 fouls committed (top 5 in serie A). He was also in top 5 regarding yellow and red cards.