Actually melo settled well and has been one of their best players so far this season (with the exception of one game where he was sent off) plus gila is their top scorer. Jovetic showed lot of promise but he just turned 19 few weeks ago so he needs another season or two to really show he's worth.
Vargas on other hand wasn't so impressive "defensively" (made some errors) but still not a totall disastor for them.....