If he want's to salvage his career, Pulisic definitely needs to go somewhere else. He's be better off somewhere else in England,maybe back to Germany or Italy (I heard Napoli, Milan, and Juventus are all interested). I just hope he doesn't throw in the towel and head to MLS.I agree with most of your assessment. Pulisic to Chelsea was definitely a mistake, but everyone to Chelsea lately was a mistake.
Concerning USA players currently, there are a lot having bad seasons and there will be tons of movement. The older players you mentioned I dont see much of that in the current cast. I will a list of a few of the top ones but who is really breakout. Some should be getting into their prime soon, but where is it:
Dest: complete bust. So bad he was released to play at the USA vs Mexico friendly recently.
Gio Reyna: down on the pecking list at Dortmund. Has had a few super sub performances. But needs to start to progress beyond that.
Pulisic: Not sure why he does not get more time. Wrong coach, wrong team, big mistake.
McKenney: turning into a bust. He is the wrath of the Leeds fans. Juventus doesn't want him either.
Aaronson: not a Premier League player. Maybe Bundesliga or France or something. Disappointing year.
Adams: A good defensive midfielder but fell out of favor at Leipzig and may again at Leeds. His game is somewhat sideways.
Rheem: superb season.
Robinson: see Rheem but not quite as good but Man City looking.
Musah: Liverpool are interested. But on another team fighting relegaton. I still like him.
Weah: Are they trying to convert him to a right back at Lille? French League is probably his level at best. Not that impressed.
Sally: Had a good season and started many games at Gladbach.
Dike: Was doing well at Bromwich until the devastating Achilles. Still an up and down player.
Pepe: Had a really good season on a bad relegated Dutch team. Might have turned the corner.
Sargent: Please no!!!
Prefok: Still worth a look but won't get it.
I don't know why anyone would sign with Chelsea right now, it's such a shit show.