I like that we keep producing kids of sufficient quality that they can sign abroad, even if it means that occasionally we lose them. Seeing guys like Miazga to go Chelsea kinda stinks when they leave after just a short time, but I think it shows the next Miazga that if you do well here, you can go places. I feel like we have one of the best academies in MLS, and this is pain of losing 1 out of every 5 really good players is a by product of that.
As much as I like the idea of kids challenging themselves at the highest level in Europe, I think it is a less than 50-50 chance that it'll work out, and over time I hope kids & parents will figure that out. Even pretty good players like Jozy can fail to ever find a good fit & end up not playing. Olosunde might have been better off getting regular playing time in MLS for a few years, but then again it's hard to turn down a ManUtd just in case it does really work out. (god knows we kept hearing 'Ex-ManUtd prospect Kenny Cooper' for ages).
Pulisic worked out really well going to Europe, but you have recognize he's an edge case- most players aren't going to do quite so well. It'll be interesting to see what happens to Josh Sargent. I like that Tyler Adams was an academy kid that played academy, then USL, then MLS, and is now a lock starter at 18. (Hopefully we can keep him until he's 20 and he can go to Europe then, though I feel like we'll lose him this calendar year.) I feel like over time, the sample size of players going over and doing well or poorly will grow to the point that it'll give players a better idea of how realistic their chances are. It's too bad we didn't get to see him here first, but I wish Gloster all the best. We now have the financial resources to sign kids like Casseres as well, and to better pay kids like Gloster to stay if there are on the fence. At least there's an internal & external pipeline to draw first team players from; teams like New England don't have this problem, and it's a serious disadvantage. So, I can't complain too loudly about the times it bites us for being successful.