I agree with most of the OP.
After letting it settle for a few days these are my very broad thoughts on this season and next.
Rotation
Playing deep into the bench is a great way to develop talent and win regular season games. This should continue as it also takes minutes off of the established vets over an 82 game season.
The deep bench style is a problem in the playoffs when your top 8 typically play 95% of the minutes. Maybe next season the playoff rotation needs to be planed for/implemented earlier in the regular season?
Bigs
Queta proved himself as a capable starting 5 for a playoff team. However if the team has championship aspirations he needs to be the 1A and have a legit 1B behind him. Meaning his back up needs to be as good as he is and reliable. This can be either a redundant skill set play or a change of pace big. Garza and Vuch are really good regular season backups but nothing more than emergency 3rd bigs in the playoffs. Having Al instead of Vooch changes the series immensely.
Wings
The youth movements play this season will pay dividends next season but for 25/26 the Cs really played with 5 wings who are 7th man in a playoff rotation (Hauser, Walsh, Baylor, Hugo, and Harper). Great players but not yet at the level to really be the 5th starter on a contender. Hugo is the guy who could make the soph jump and change this. If no major moves happen this off-season I can see Hauser being traded to open the wing minutes up and help bring in a big or future draft capital. JB and JT need to be given another healthy season together before any JB trade is ever considered. I hate the media speculation with JB but that's the nature of modern sports.
Guards
I feel this area of the roster is just too thin. If and when White/PP struggle the Cs really have no one to turn too. I would love to see the Cs bring in a combo guard to develop behind them. Simons showed us that a scoring combo can work in this system and while I understand (cap) and agree (needed a Center) with the Simons/Vooch trade if it didn't happen Simons possible shoots the Cs into the second round. This is where I really like Meleek Thomas in this draft.
Next Season
This is probably a homer take but I wouldn't look to make a big splash move.
Let Vooch walk and try to sign a better system fit, maybe go back to the green well with R-Will, KP, or AL? Figuring Garza/Williams can give good productive reg season minutes while keeping one of those 3 hopefully healthy,
Look for a combo/PG in the draft to develop and ideally get some reg season minutes behind White and PP
Move Hauser to either target a big or a combo guard. In doing so open up minutes for Hugo/Walsh/Baylor one needs to emerge as the 5th starter by the deadline or a trade is needed.
ALT plan; move PP to the starting lineup and look to sign a Colby White like (6'4+) combo guard as the 6th man. With a better option behind Queta and a healthy JT this roster can on D easily insulate PP as a starter allowing his minutes to be staggered with another stronger scoring option.