I think he needs a break for a week or 2. I know the usual schedule for a pro is 2 weeks on and 2 weeks off. Just so they can get a life outside of the game. If you play too much you start trying to play too hard to make things happen when you are in a "funk". It good just to go away and have a beer or something, come back fresh.
He hasn't taken a week off, and he keeps missing cuts. He's even planning to play next week.
I notice he played in quite a few "Silly Season" events at the end of last year. Personally I think he got caught up in being a "media darling" and the time he probably should have spent tightening up his game for this season was spent enjoying the trappings of his newfound stardom.
I've notice very few rounds under par by Jason this year. Maybe between his Nike contract and other endorements he's just gotten comfortable and he's not "hungry" enough to focus on his game like he needs to in order to really compete on tour.