If Jovetic can get 15/18 goals per season will be alright playing him as a CF, because we have many scoring threat elsewere. Vucinic should get 8 to 10 goals, the same for Giovinco. Then you have Marchisio, Vidal, Isla, Pirlo and the attackers subs all capable of scoring in the range of 5 goals.
Getting Jovetic will mean that we will play with no set striker, similar to the way Barca play with Messi as CF ( I'm not comparing Messi to Jojo btw), this system will need all the other players to step up and be scoring threats, If we could adapt to this and make it work, we'll have one of the best teams in the world.