the thing is that nothing on that list he has said through the year is wrong..
Early in the year he sucked.. lots of threads about possible bust territory by other people
He still holds onto the ball too long..
He is a fantastic runner but still is not throwing for many yards, not throwing guys open, not throwing into tight windows, not understanding what open is in the NFL.. You know all the problems he had earlier in the year when people where calling him a possible "bust" are still here, he just covered up his weakness with elite running..
All that running is NOT sustainable if he wants to have a long career.
Hopefully this injury is a wake up call for fields and the coaching staff to have him work on his actual QB skills, this year is pointless if he doesn't develop his QB skills and relies just on running. To be a true dual threat QB he is going to have to actually develop that other "threat"