Come on, lets brainstorm reasons why Giovinco isn't starting.
1) Too weak physically.
2) Not enough experience.
3) Not able to get stuck in defensively.
We saw against Chelsea that Giovinco can run at anybody, so one is no excuse. Two is certainly no excuse either. Now three is true, but with starting Nedved you're sacrificing quite a lot going forward, so the question is: what outweighs the other? Giovinco's addition to the attack or Nedved's addition to the defense?
I don't have to tell anyone my view on that.