maybe my English is one of the worst in the forums , but from what I understood, I think I used the right word:
http://dictionary.reference.com/search?q=performance
per·for·mance Audio pronunciation of "performance" ( P ) Pronunciation Key (pr-fôrmns):
-Something performed; an accomplishment.
-the fulfillment of a contract, promise, or obligation
- the complete or exact fulfillment of the terms of a contract, promise, or obligation
but again, I might be wrong too.
But I think you got my point there, what I meant that Capello/Juventus performing/accomplishing the job the best way so far, yes we are not playing the best football, but our performances (what you meant Andy) in every matches overall are more than the average with more ups (Inter-Roma-Bayern etc..) and less downs (Milan - Bayern and Bremen away).