Jovanovic is a good player, believe me, I see him play every weekend so I have a good vision on what he can and can not do. And yes, you could say Belgian league is a lot worse then Barclays, duh, but now, look at Felaini, isn't he doing well?
Plus, in the matches for european cups it allways is Milan who made an action so a goal could be scored (remember everton and liverpool mathces), plus, unlike other players, he isn't afraid to take a shot. He's got some good pace and vision, and he would be a perfect 2nd striker to pair up with Torres.
Only thing he needs to control is his temper, but offcourse in Belgium he is one of the best players, so you can have a temper, I think you can't go yelling at Torres when he takes a shot instead of giving a pass, so that will resolve itself.