I think you misunderstood me, at least in your first two lines. Which is kind of funny, because you got it right in the rest of your comment.
Pellegrini has shown me nothing other than being upbeat, positive, good-natured, and relentless in his effort. He's shown none of the rough edges, say, Santi has shown by arguing with Maxi on the pitch, arguing with Nick on the touch line, arguing with the ref constantly.
I just really like his mental makeup. And I definitely think the talent is there; he just needs the opportunity to show it.
Anyway, the example I gave was some subtle badassery. It's the kind of thing you cannot teach. Dudes either have that kind of strength under the hood or they don't. When they do and have the rest of the package to go with it, they're a winning player.