When Jim Harbaugh took over as the coach of the Los Angeles Chargers ... The idea was to build the offensive line, play power football, hit the big shots off the run game and hope the defense could bring a physical style. As we hit the halfway point ...

After being 2-2 at the bye week, the Chargers have won three of four — including two straight by at least 17 points — and are playing their best football of the season. The biggest reason for the Chargers' turnaround has been something that Harbaugh has preached from when he was hired as head coach on Jan. 24 — mental toughness.

Former Oregon Duck and current Los Angeles Chargers starting quarterback Justin Herbert is leading the NFL with only one interception in eight starts. His one turnover through the air is the least of all NFL quarterbacks starting every game.