Not a fan of Bruce or Sunil, but the reality is that they have very little impact on player development where the US is falling short. Under Klinsmann, they started requiring the most basic coaching license F-license, it's a few hours online. Our players lack technical proficiency and that is cemented at around age 14. The Development academies don't allow their players to play high school, another good step the federation took. But everyone went up in arms. Lots of people argued that that's a better way forward (allowing high school play) in this very thread. I've said it before—at the age our players enter high school, their counterparts enter a professional environment. High school is basically lots of games and that's not where players get better. Plus, the training is focused on preparing for games, not improving the individual players. Then the "best" move to college where they have a 4-month season and contact with coaches. At the time they need to be getting more and better training—they get worse and less training. Few believe it, but many of our top kids have the technical ability to match up with counterparts in europe and S. America, but as I mentioned above their soccer education hits a wall.
About 8 years ago, there was a U10 team from California that went to Barca and beat Barca's academy team. One player, the slight Jewish kid (Ben Lederman) and not the many hispanics on the team was signed into their academy—eventually being given the #10 shirt. That's a huge deal. And he's from an affluent family. He is a special player but not the only one in America. His teammates are now with LA Galaxy academy and I believe they beat Man City's academy a few years ago.
Sunil, Bruce, or Klinsmann have nothing to do with Ben Lederman and his teammates. Their coaches are Argentine (ex-pros) who do not adhere to USSF models of development. Klinsmann made an impact because USSF licensing is now way more rigorous in the past (although far from perfect). Sunil and Co. probably had a hand in the DAs which is a step in the right direction.
The sad truth is that Sunil is not power hungry but, in fact, powerless. If tomorrow, he said all youth teams had to play a 4-3-3 (or age appropriate variant) and play possession soccer and train fundamentals till age 14 and stop keeping score—No one would listen, or more accurately he has no way of enforcing it to the youth system.
Look at Iceland: 330,000 people and they found 25 that can play. We have that many registered players in DC/MD/VA. Talking players only, not inhabitants. Iceland doesn't have an inner city population or Latino population that they use as an excuse for not being better. They took what they had and developed it. It's been true for the Netherlands and you could find 25 players from Rosario, Argentina alone that could crush the USMNT.
The leadership is problematic, the structure of the federation is problematic but they're really not the reason. No national team coach is the reason (senior or U-XX), they have the players for about 2 months a year. "Soft reasons" like culture or unfound inner city/latino are merely excuses. It's about developing better players from the get go. Start with more, accessible, inexpensive, good coaching education. Then de-emphasize the winning at the young ages and bull**** tournaments. But it's hypocritical at times, lots of parents are probably chirping on online message boards about not having better players, but they're the same ones that yank their kids to a new team if the team isn't winning.