Running the ball has been something that Frank Reich has wanted to do since he took over the job in 2018. The running game, not the passing game, has been the focal point of the offense. Even when they had Andrew Luck at QB in 2018, he wanted to run the ball more often.
Even with Philip Rivers replacing Jacoby Brissett, the running game will still be the focal point of this offense. The offensive line is still the same as it has been for the last couple of seasons and still is one of the best in the league.