Good is relative ;-) I have to believe "everyone" would be tough - as there's always "someone" that "anyone" can point out that isn't as good, but in their son's position !
My oldest son was on a team of kids that all were cut from some other program in the area - by the time they were U15 they were playing in the AAU World Series - won a couple games... They had one player who ended up somewhere in minors / indy / int'l ball (Ruben Sosa). The HC is now the HC at Northeastern - they caught lightning in a bottle and had great coaching throughout.
My youngest son's U11/U12 team had 10 really solid players that all ended up in some D2/D3 program - not bad for a small town in the middle of nowhere NH. Our lineup typically had 5 kids who could hit against top pitchers and 5 that hit the slow/junk pitchers... We carried 12 players and had the most issues from just 2 players parents - go figure!