For the Barcelona club, the Celta Vigo victory was crucial going into their Champions League encounter with Inter Milan. This victory will revitalize Barca's team spirit. The team's performance against Celta Vigo was below average; hence, Xavi should stick with his starting lineup and cease experimenting. I understand that he wants to give other players an opportunity, but switching around the lineup will not benefit the club. Wednesday's game against Inter Milan requires Xavi to get that right. To advance to the next round of the Champions League, they must defeat Inter Milan.
Their opponents in the Champions League are tougher than the match against Celta Vigo. Yes, of course they have to play better, because they have to win games to qualify for the knockout phase of the Champions League. It's true that the match later is not a place for them to apply a new strategy but a time to show their best strategy, because if they lose, their hopes will be getting thinner, even non-existent.