She's not referring to the same role. She's saying Quagliarella was better at his own role last year (as a striker, I suppose...) than Vucinic at his role this year.
He impressed me for the first time today. Conte's tactics today were very Roma-esque circa 2008 when Totti was the lone front man due to an injury crisis and they had like four midfielders pouring forward. It was cool to see.