Amauri is closer to a supportive role, than a finisher role, personally i dont rate as a finisher, a player that cannot score more than 15goals/season.
If he cant score regularly, in my books he has a supportive role at the offense, either be setting up another player, or keeping the opposition's defenders busy.
I call a striker with a supporting role, a support striker and a striker that scores oftenly, a prolific finisher.
Osvaldo plays as a CF/target man, but he cant score +20goals/season, thats the only thing we lack at front.
Everything else can be provided by our current options!