QB in the NFL is hard, very hard, so hard almost no one on the planet can do the job well.
When you look at a guy like Skelton you have to keep that in mind, and the things I like to keep in mind are:
A. Does he have the physical ability....... "IMO yes"
B. Does he have the character to do the job........"IMO yes, better in the 4th Q than the first, winner etc."
C. Does he have the brainpower to do the job......"This one is the last juror out.... IMO probably but again, dunno yet, this is where his bad throws, bad play IMO comes from and it will either stop or it won't, time will tell but I do see progress, which is good."
He plays IMO better than I would expect him to play which is I think how you sometimes find your QBOTF, by accident.
BTW by any measurement stick you want to use he's NOT terrible, not given his experience level, he's just not terrible, he's not great but he's not terrible either.