Winning comes about through a combination of players and coaches. Players have to do their part, and coaches have to do their part.
Bragin has no control over the quality of players he can choose from, that is true. Having to balance North American players with Russia-based players has the same harmful effect at the junior level as it does at the senior level, that is true. I didn't expect the team to do better than Bronze this year, but after the Canada win, they clearly had a chance to make it to the Gold Medal game. But to get to Gold or Silver, you have to survive the Semi-final round by beating a powerful team.
The loss to the USA was devastating in many ways, and closed off any "good news" from a Bronze finish. Immediately after the game, my impression was that the cause of the loss was the superior skating and stickhandling of the American team. Some of these Americans were from tropical beach towns in Florida and California, and they are skating rings around kids from Siberia. How could this happen?
After some time passed, I came to a different conclusion. For the first 10 minutes of the game, you could say that Russia outplayed the USA, and almost seemed in control. Then the goal is disallowed (wrongly) and the Americans score shortly afterward. Russia immediately seemed to go into a form of collapse, and the US swarmed over them for the rest of the game. The score doesn't adequately reflect the dominance of the American performance. Kochetkov kept it close.
Maybe, though, the Americans weren't actually better skaters and stickhandlers than Russians. I think that you look faster and better when you know where you are going and what you are expected to do when you get there, and, conversely, you look slower and more inept when you are just reacting to negative events as they are happening. Teaching your kids to know where to go and what to do is the coach's job, and Bragin didn't do it this year. He hasn't done it in the last 3 years. So why would you expect that he would do it next year? So often, Russian players, talented as they may be, just took off skating end-to-end to try to stickhandle through an entire team Using your teammates effectively seemed to be optional, and some (Denisenko, Podkolzin) decided not to do it. Coaches cannot tolerate that and obtain a good result befitting a great hockey nation like Russia.
There are some good young coaches at the junior level who are just waiting for their chance to show what they can do. Maybe it is time!