Matt Hasselbeck remembers when he was the promising young NFL quarterback. He would make a big play, come to the sideline and his veteran backup would try to impart some wisdom. “I’m like, ‘Yeah, yeah, whatever,’ ” he recalled. The game would end up being close. And that sideline knowledge would resonate. “I’m driving home after the game and I’m thinking, ‘Man, that guy really knew what he was talking about,’ ” he said. While on a spring-break Bahamas vacation with his wife and children, Hasselbeck talked on a Tuesday conference call about how he is now that voice of experience for the Indianapolis Colts’ Andrew Luck. A two-year, $8-million contract signed earlier in the day signified it’s Hasselbeck’s time to enlighten other with his 14 seasons of experience. He led Seattle to Super Bowl XL and has been to three Pro Bowls. The quarterback, who turns 38 in September, has seen a lot in a career with 34,517 yards, including a Seahawks record 29,434, and an 80-72 record as a starter. “I can help strengthen the team by being ready to go, being a guy the team can count on if necessary,” he said. “The statistics would say your backup quarterback is going to play. Everyone hopes that he doesn’t, but the statistics are that he does. “I just wanted to be a part of something special. I wanted to be a part of a team that has a chance to win the Super Bowl. I wanted to be working with quality people.”