Surely it's a combination of things that are preventing Blake form performing like he did last year.  

 

I think poor technique crept in  when he wasn't paying enough attention and now his head has been affected by repeated poor performances. 

 

Clearly his throwing motion is more elongated, his footwork regressed, and he's locked onto one receiver more often than last year. 

It's not any "one thing," it's a combination of things that are now topped off with a  loss in confidence and lack of faith in coaching. (the latter being perfectly understandable)

 

One play in particular that screamed regression (and maybe loss of confidence) to me was in the fourth quarter Thursday when he dropped the ball to his waist twice before finally throwing behind Lee on a crossing route. You'd think after two INTs on the same throw he'd have that particular play cleaned up, but it was ugly and his body language afterward was telling. 

 

While it would have been a tough catch, it was technically a catchable ball,  but there was literally zero reason for it to be placed so badly besides his wonky mechanics.  

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