I don't see how we're picking just one thing here.
Yes, coaching has been subpar both at the head coach level and coordinators.
Yes, we have injuries and guys playing that shouldn't be playing.
Yes, FO whiffed on some picks and generally speaking haven't done a good enough job bringing in high end talent.
That said...Josh has been mediocre at best in a bunch of these games. Some of that is on coaches, some on receivers, some on line, etc., but some of it is definitely on him. There's too much at this point that Josh hasn't had a typically good season by his standards or otherwise.
Also, we've seen normally good players like Dawkins and Brown play under their capabilities for various reasons. We've seen savvy vets like Taron and Milano get old right in front of our eyes. We've gone from a turnover lucky team to turnover prone and losing the turnover battle.
There's so much going wrong with this team that pointing fingers in any one direction is missing the point.