I wrote an analysis of our strikers recently...of their very basic stats, which is far from a perfectly accurate measure of their potency and value to the team, but nonetheless it is of some meaning and measure...
http://juventusprimaveraandyouth.wordpress.com/2013/03/07/juventus-striker-analysis/
As an overview...updated after yesterday's game>
Vucinic
8 goals and 5 assists from 1803 minutes in Serie A and Champions league – scores a goal/assists a goal every 138 minutes. (1 goal per 225.4mins)
Giovinco
9 goals and 7 assists from 1936 minutes in Serie A and Champions league – scores a goal/assists a goal every 121 minutes.(1 goal per 215mins)
Matri
8 goals and 2 assists from 1119 minutes in Serie A and Champions league – scores a goal/assists a goal every 119 minutes. (1 goal per 140mins)
Quagliarella
11 goals and 2 assists from 1039 minutes in Serie A and Champions league – scores a goal/assists a goal every 74 minutes. (1 goal per 94 mins)
I am well aware of Mirko's value as a link man between midfield and attack. One of the problems is that he links the midfield to the midfield moving forward to become the attack, which will be predictable against the top sides we will face as we progress in the champions league. Press our three central midfielders hard and constantly, even just man for man mark them and any Mirko incorporated attack can be nullified. Both Matri and Quagliarella, regardless of their stats, can both shoot accurately and powerfully and far more consistently potently, than Mirko. I also see Matri improving at holding the ball up and laying the ball off to forward foraging midfielders. Quags has shown in the past he can play as a leading prima punta, when paired with DP under delneri, and playing with a far inferior team.
The bottom line for me is that Mirko misses far more gilt-edged chances than he puts away. We would have beaten Napoli, and several other teams, if he could shoot anywhere near as consistently accurately and powerfully as Matri or Quags. He also creates chances...apparently, many say, far more consistently than any other in the offensive department. I see less of that, and place his real output to the team equal to Giovinco, but less overall, for Sebastian's effort is much higher, and he is faster, which can help to bother defenders more readily than an average Mirko which is languid, wasteful.
Again, not on the stats, but on what I have seen, I prefer Giovinco, but see him out of position, asked to do a very different job to what he was asked to do at Parma. Seconda punta with no defensive duties, is far different to seconda punta with huge covering duties and without a prima punta next to you, higher up the pitch more often than not. Mirko plays much deeper, and far more static, leaving Giovinco to wizz around and try to be some kind of reference point. Neither player leads the line...its not in their natures. Matri can lead the line, and so can Quags to a degree...as a hybrid kinda prima punta. He was deployed very high up the pitch during that incredibly rich vein of form he had pre-injury.