The Hoops stunned Barca at Parkhead.
Vilanova insisted: "The other day we had 97% of the possession in the second half. If that's not enough...We had the possession and a lot of chances. We always want to have possession, to try and attack and score. That's the way we play. The way the team plays suits them. A choice was made about how to try and win. Barça is admired for the way we play, something that can't be said by many teams."