It should have taken Jim Harbaugh a little bit of time to turn the Los Angeles Chargers around.
They had an interesting roster, but not one that really fit the style of play Harbaugh prefers. And the Chargers hadn’t won anything of note in a long time. They also needed to let plenty of veterans go this past offseason due to salary cap reasons.
On top of it, Harbaugh hadn’t been in the NFL for nine seasons. The game completely turns over in that amount of time. For anyone else, that alone would have needed an adjustment period.