These days, with seemingly every single second of football caught on film, any player can put together a decent highlights reel.
At a lower level, players are generally defined by these highlights.
At the top, though - and this is the case for every player at City, nailed-on starter and occasional sub alike - players tend to be defined by their mistakes, as tight title races are usually decided (and remembered) by such things.
This is therefore the yardstick by which Nunes has to be judged, and by which it's pretty difficult to class him as anything but a failure. He seems a really nice, honest lad - and lately he's shown a couple of flashes of what could be, if he only had the confidence to trust himself and play on the front foot more.
The problem is that even when he makes us doubters eat our words, such as the explosive run leading to Gundo's Fulham goal, it's only a matter of time before he does something like run the ball out of play without anybody within 20yds of him. I mean, that was frankly comical, wasn't it? Harmless on that occasion though, unlike quite a few of his other aberrations. He's definitely cost us a lot more points than he's won.
Maybe a loan out to where he'd be a bigger fish for a season could light some sort of fire in him? Failing that, I can't ever see him changing anybody's opinion, not while he's still here, anyway.