LOS ANGELES — When the Los Angeles Chargers host the Las Vegas Raiders on Sunday to begin a brand-new season, they will do it with a new head coach, Jim Harbaugh. He was once a quarterback for the team. Now, he returns after having just won a National Championship at Michigan.

Harbaugh's arrival brings lots of expectations for the Chargers, who haven't been to the Super Bowl in 30 years. The franchise has also never won the Super Bowl.