Okung isn't playing well and holds or grabs are an indication of something wrong. Michael question mark, fumbles, etc are more explainable when you start adding focus or attention to details which you need for blocking, or a possible learning disability like Wallace had.
Any build up by Pete as far as his progress may not be a smoke screen as much as the amount of understanding he is gaining, it just may not be on the same pace as others and as long as he is working at it he could eventually break through. Larry Brown had great talent and also had issues, it was finding out he had a hearing issue and addressing it that helped him become a great back for the Redskins, he also had issues with fumbling. Confidence has a lot to do with your performance and if you're not getting it your confidence drops creating other deficiencies.
Also the one person I would not discredit his information here about is Aros, he knows like no other what information given can create and I am sure is doubly cautious about sharing something that is misinformation or purely opinion.
I would say that people always want to shoot the messenger, discredit, or be able to say I told you so if they can. But then again you also know this Aros.
I appreciate the information, and it explains or offers possible explanations at least.