Make it clear to Richard that this is a business decision, and ALL the facts will be reviewed objectively before coming to a final decision.
Then, I’d go through the game logs and review team stats and league stats. After looking at the most recent advanced NBA analytics, you’ve determined that the most efficient plays are as follows:
1. 3 pointers
2. dunks
3. Josh Harden isolation plays
I’d then ask Richard to provide stats on all three of those scenarios for his kid.
If Richie Jr. doesn’t match up to the NBA averages for those 3 scenarios(and let’s be real, he probably can’t even dunk), then it’s a clear decision.
But if Richie can’t hit threes, dunk, or score in isolation, how the heck is he gonna help the team? After all, you are preparing ALL of these kids for their eventual time in the NBA.
If they still won’t budge, tell them that you will host a 1-day try out for Richie Jr. in front of the rest of the team. If he can cumulatively:
– Hit 40% of 3 pointers in an NBA All-star skills game-style 3 point contest
– average a score of 7 or better in a slam dunk contest.
– beat you personally in a game of 1-1, first to 11.
then you’ll put him on the team.
Seriously though, I’d tell him them that you’d be happy to have them on the team next season, but it’s too disruptive and unfair to the current team to bring them aboard. If they’d like to get a head start, they can join the team for practice and you’ll consider working them into games at the end of the year. That way current players still get majority of playing time for the season, then hold some sort of team meeting/vote to see if the current players want to let the new players start contributing in games after a month or so. The current players may change their mind once they gel with the new players, or maybe towards playoff time they want to make a splash in the tournament.