Spain crashed out of the 2014 World Cup at the group stage after defeats in their opening two matches, which led to fierce criticism of the reigning European champions.
While Silva acknowledged that some of the backlash was acceptable, he has warned that patience is required with La Roja.
"Over the last few years we've been known for having the ball and creating chances," he told the Daily Mail. "We have to be patient as there are new people here.
"Now we don't really create much. We're working to improve that aspect. We are trying to connect with Costa. We're on it."