The Blues have fielded a variety of players during their pre-season schedule, which continues on Thursday with a friendly against Real Madrid in Miami.
"We have some very young boys, but young boys with good talent," Mourinho told the club's official website. "We can look to a good future even though the present is very good. The kids give a balance to the squad but also security for the future."
Chelsea get their Premier League campaign underway at home to Hull City on August 18.