Yahoo Sports NFL on Kenneth Walker III

From the article

Walker's addition to the Chiefs has provided the offensive balance the team lacked, forcing defenses to account for the run game. Mahomes stated: 'It's fun for me, just him running the ball, our offensive line driving off the ball the way that they're driving off. It's making defenses have to account for that. I mean, if not, we're going to run the ball for 200 yards or whatever we did the week before, and so you want to be able to do it all.' This balance is helping Mahomes' passing efficiency.