Chargers head coach Jim Harbaugh remains optimistic about starting quarterback Justin Herbert's recovery from a plantar fascia injury, which has kept him off the field during training camp. Harbaugh emphasized that Herbert is taking mental reps and studying film to stay prepared, expecting him to be ready for Week 1 against the Raiders. Meanwhile, backup quarterbacks Luis Perez and Easton Stick are under scrutiny, with Harbaugh closely monitoring their performances. New additions like first-rounder Joe Alt and second-rounder Ladd McConkey are adjusting to their roles, with Alt receiving mentorship from veteran players. Despite setbacks, Harbaugh's intense and focused approach aims to prepare the team for the season, with hopes that key players like Herbert, Joey Bosa, and Khalil Mack will be ready to contribute.