I use Zarate up to second season and play a advanced forward or poacher role on him, turns out quite well provided he is supported by a good Deep Lying Forward.
32 apps 18 goals 5 assists at 1st season with avg rating 7.58.
28 apps 10 goals 11 assists at 2nd season with avg rating 7.24.
Yeah, didn't really good at 2nd season, but it's me who messed up with tactics.
As a striker, he play better at right. When i played at left, he went 10 games without scoring..
Formation 4-1-2-1-2 :
1st season : the other forward is Floccari
2nd season : the other forward is Dzeko