When you say he's not technical, what are you referring to?
I mean when I think of technical abilities I think of dribbling, passing, and shooting. He has all three.
He is a great dribbler, he averages 1.7 key passes per game and has mid 80% passing percentages. Also, qualitatively by watching him, he is an excellent crosser, I've seen him perform flicks and chip passes. Also, he has an underrated cannon of a shot. He is a very good distance shooter.
His extraordinary pace and the fact that he is above average defensively and a work horse is just gravy.
Also on Sanchez, would anyone be opposed to playing him in a central position, preferably as a false 9, because his skill set seems to suit that more than a winger.