"I've been on a few winning teams and that's what it takes - a good mix of young and old guys, serious and funny guys," the 23-year-old said.
Oilers legend Wayne Gretzky - who understands the importance of a strong team connection after establishing it with the 1980s Oilers - travelled with the club last season and couldn't help but notice their relationship.
"There's really not one bad person in the whole group," Gretzky said. "They're just really good, responsible young men that are proud to be Oilers and so it makes everything very exciting."
Gretzky credits Oilers President of Hockey Operations and General Manager Peter Chiarelli with forming a squad that plays, builds and grows together.
"He loves the game and he loves this organization and he loves this team," Gretzky said of Chiarelli. "He's going to do everything he can to put the best opportunity for Todd (McLellan) to have a Stanley Cup champion and it's a close group of kids."
Off the ice, the team lets the chirps fly. On it, players are quick to defend one another, share celebrations or urge fellow teammates for more.
"Guys go to battle for each other and the fun little ribbing on social media, I think that's just an extension of the friendships that have been made," said Letestu.
"I'm happy for people outside the organization to get a chance to see what kind of group this is."