I think the run defense is fixable. Gay and Bolton in theory could be a better LB combination than we've seen on the Chiefs in a few years.Oh yeah, they definitely can turn it around with a few tweeks but they also have to quit giving the opposition short fields with turnovers. Those are killing you guys. And you face some good offenses down the road. Need to step up the run defense for sure.
The pass defense is broken, though. Sorenson has been clearly bad for years and he continues to play an integral part in the Chiefs system. If one of the worst players in the NFL is playing 100% of snaps then your system stinks. If Ward stays on the field at CB, though, I wouldn't be shocked if the Chiefs defense moves up to somewhere around the 20th best D in the league.
Its not really even about short field with turnovers. Chiefs have just have too many. Not sure that will get better but it certainly couldnt get any worse.
When the Chargers beat the Chiefs, there were 4 turnovers and 2 backup CBs. Dont be surprised if the next game is way different.