The other day Eric Stoner (@ecstoner) put up a post with a link to cut-ups of a bunch of Blaine Gabbert games for reference, as he's doing a big write up on the Jacksonville Jaguars second-year quarterback. He's posted the first portion of his analysis over at DraftBreakdown.com, which focuses mainly on what he looks for when evaluating a quarterback.
When he does make the effort to stick through his progressions and stick in the pocket, his decision making improves drastically (whether or not the pass gets completed comes back to his mechanics and/or deficient receiving talent at Missouri and in Jacksonville). As it stands, these good plays did happen. To his detractors, they were either were too few and far in-between and are nothing more than a flash in the pan in comparison to his overall body of work. To his supporters, those flashes are the evidence that he's capable of having bright future that got temporarily submarined by circumstances beyond his control.
The big part of his analysis is going to come in the second part, but I highly suggest checking out his criteria for evaluating a quarterback.