Nobody knows if Pjaca is skilled, not even Pjaca. Croatian league is a fucking joke, half the clubs are part of Zdravko Mamic's crime empire. Players from some other clubs literally don't play against Dinamo: they don't defend, they don't try to score goals, they are only passive spectators watching how Mamic's players pump their stats for inevitable sale. Referees destroy those who don't participate in that shit. Yeah, there are some great Croatian players, but there's also shitload of complete crap Mamic managed to sell. Stats and reports from Croatian league don't mean shit.
And even when you buy good player from Dinamo problem is he is probably entitled, lazy piece of shit. Because he got used to win with Dinamo without any effort. I mean, why the fuck work hard when half the players in league aren't allowed to tackle you? Mandukic was that way before Germans made him into man he is today.
So, buying from Croatian league? Be very, very, very careful.
Source: me, disgruntled Croatian.