Having not always convinced during the group phase, Gago expects the Argentines to play more offensively against the Swiss.
"If you want to grow during a tournament, the key thing is to learn from your mistakes, and that's what we've done," he is quoted as saying by FIFA.com.
"We've been improving bit by bit, and now we're in a situation where one point is no longer enough for our opponents. That should open up more space for us, and we'll be able to play to our strengths."
Argentina reached the quarter-finals of the 2010 World Cup before losing to Germany.