Just if anyone wondered:
2023 Men’s U19 National Team includes Mark Armstrong, Tobe Awaka (transferred after mediocre sophomore year), Omaha Biliew (transferred after mediocre freshman year), Kylan Boswell (transferred after a mediocre sophomore year), Myles Colvin (mediocre freshman year), Eric Dailey Jr. (transfer after decent freshman year), Dylan Harper (incoming freshman), Ian Jackson (incoming freshman), Tre Johnson (incoming freshman), Ven-Allen Lubin (in transfer portal, I think), Asa Newell (incoming freshman) and Cody Williams (NBA entrant after very good freshman year off the bench for Colorado).
2022 Men's U18 Americas Team includes: Seth Trimble (mediocre year at UNC), Castle (duh), Eric Dailey Jr. (see above), Jared McCain (Very good year at Duke, NBA draft entrant), Ty Rodgers (mediocre sophomore year), Kanaan Carlyle (decent year for Stanford before transferring), Kel'el Ware (Decent sophomore year, NBA entrant), Cam Witmore (NBA), Anthony Black (NBA - kinda), Brandon Garrison (transferring after solid freshman year), GG Jackson (NBA), and of course, Mark Armstrong
Castle aside (UConn bias) that team doesn't exactly scream NBA stars. The 2023 team was just super young for the top talent, or not that good so far.