Yea I'm sure his ONE WEEK at that camp had a far greater impact on him than the TWO YEARS with Cumbie. We're really turning over every rock possible to discredit anything and everything positive.
So it's you who has the keys to the Wayback Machine...
There is no doubt that TB2 improved mightily from 2013 to 2014. He also improved yet more from 2014 to 2015, until injury hobbled him.
The Manning Camp is a week of intensive QB work that focuses specifically on proper footwork, throwing mechanics, and field vision. It is famous, of course, due to the name and all, but the kids who go through it generally come out very much improved. Dalton attended, and he was very much a better player afterwards.
While the time Cumbie had to instruct Boykin and the other QBs on the roster was somewhat limited due to the time needed to instruct everyone on the new offense, it is evident that he was able to impart some smarts. For Boykin, it paid off enough that he was able to have a monster 2014 season, and get an invite to an exclusive Camp that few get the opportunity to attend.
Now, all that being said, it is evident that some guys don't get the message, and do not improve one whit. Regression is even seen. Whatever happened to the calm, cool and fairly collected Mule that we saw against Rape U. and OkSt.? He looked like he was wearing a shock-collar out there: three seconds, and
ZZZZZT! He had lost every bit of the poise he had displayed just three short weeks ago. Finals didn't turn him into a panicking puddle of goo. Perhaps the pre-game buffet..?
I don't know what's going on with the Offense. All I can base a judgement on is their performance, and that has been lacking. Lots of people have opinions as to why, but the simple fact of the matter is that we were sub-par offensively. That deficiency is laid at the feet of the Offensive Coordinator and QB Coach. It is his responsibility to see that the Offensive unit is able to do it's job, and do it well.