I think that McKennie was more of high potential raw material that needed additional polishing at the U17s for a year (even though he was very quickly named captain for that team) while Adams simply stepped into the first team of a Big 4 UCL team. That's not to discredit what FCD has done - they've got a fine program that churns out talent. I haven't been following Davies but I see that he is a squad player for Bayern like Sargent and Weah for their teams. I think that he's another one that MLS gets credit for, assuming he stays with the first team or get loaned and gets time at another Big 4 team! Almiron was able to step into Newcastle but I don't think Atlanta United deserves full credit for his development (not zero either).