Nah, I prefer Rossi, would like to have Zarate too, but prefer Rossi. He is way more mature and effective as a player, besides being the similar type of player (not as explosive or strong, but creative forward all the same). He uses his special talents to the best way possible, instead of be bit flawed like Zarate.
I dont think Lavezzi is that hard to get, testing, others will be after him too, but not that big of an obstacle, he will want to leave. Would be cool if he would be our modern day Sivori, heh.