There's a ton of good stuff in this post, but I wanted to focus on this one.
As I said in my match review, Iraola is a bit of an enigma for me. I look at a guy who has his resume and can't figure out why he isn't influencing the game more (age is always a possibility, but it doesn't seem like it).
As I read your post, I wonder if MLS is just not the right league for the things he is good at even though he could still excel in a tougher but more technical league like La Liga. I agree that he is skilled at working the ball around the corner of the 18. He isn't a guy that gets to the byline, but is clever around the top of the box. The question then becomes whether we have the right players around him to maximize those skills. For example, a guy like Shelton seems to be the polar opposite in terms of what he is good at and where he struggles. There might be more promise with Villa or with the various CAMs who are more technically proficient. I feel, though, like too often he gets sucked into the play too far up, but the team as a whole doesn't have the skill to finish the move and so the ball turns over with him out of position.
Anyhow, still thinking through this, but I want to watch it more closely.