SANDY, Utah — The U.S. women’s soccer team finished its preparations for next month’s Concacaf World Cup and Olympic qualifying tournament late Tuesday with a 2-0 win over Colombia at Rio Tinto Stadium. The win finished off a sweep of the two-game set, with the first game a 3-0 U.S. victory. But they were tougher tests than the Americans have had in a while, and that’s a good thing. Here’s a look at some takeaways from the last week and a half in the Rocky Mountains. Defensive midfield depthPerhaps the biggest question about the 23-player squad that will go from here to Mexico is this: Who bes…