MAP - agree with a lot of the article. I'll tell you why Davidson was passed over at the younger ages -- because she wasn't an "early maturer". Physical maturity seems to play a big role in player selection at the younger ages for USA. Granted, when facing teams like Cameroon, with players who are big and strong and physical, a late-maturing skinny girl may struggle. But that shouldn't mean keeping someone like Davidson off the team. Instead, sit her on the bench for that game and let her shine vs. all the other countries who she can beat with her technique and calm presence on the ball.
That said, I still don't think it's primarily a player choice issue -- primarily a coaching issue for me. How many mini-triangles or diamond shapes did you see the USA in throughout the field when in possession? None. A player gets the ball and teammates are streaking up the sides or running ahead up the middle. So, when #10 or #8 or #6 (positions) get the ball, they have one option -- try to kick a longer pass either on the ground or in the air to the runners. Easily defend-able. Contrast that with Japan or Korea or Spain who always have a triangle or diamond shape around the ball. Players know this and so can easily pass out of pressure because they have 5 options -- forward, back, left, right, or over the top. This is a style of play that has to be practiced and learned and practiced some more. Did you notice how Germany in first 30 minutes continued to try and play out the back over and over again, even when USA was pouncing on them? Eventually, after they couldn't get the ball out 7-8x, they kicked one or two long, but that's the type of commitment needed to develop -- as you know. I give them a lot of credit.
Just confounds me why, when the winning recipe is right there on display for everyone to see with teams like Spain, Koreas, Japan, etc. why US (and Canada) can't copy it---or at least lose while trying!