Needless meddling:
2. permitting gray shirt for officials.
Gives those that need something to make them look different a way to do so by moving to gray before the others do.
3. 15 minute mark for submitting player roster and starters
What problem could this solve?
4. Home team wears even numbers, visitors odd.
Not really a financial problem if put at a future date but not necessary.
5. require headbands/sweatbands to be same color as jersey
what problem would it solve? I've never been confused by a headband color.
8. stopping the game clock on made goals in the final minute of the 4thQ and extra periods
Too likely to be messed up by timers.
9. play in halves instead of quarters
Why? OK, but Why?
10. entend the game length to 36 minutes
How would it improve the game?
13. change from a held ball to an OOB violation on the thrower when the thrower holds the ball across the boundary plane and a defender grasps it simultaneously with the thrower
14. "a closely guarded count shall be terminated when the offensive player in control of the ball gets his/her head and shoulders past the defensive player."
(Mike Dick of Iowa Girls HS ath union writes of a situation in which the offensive player is cg for three seconds and then dribbles around the defender who chases the offensive player from behind but within six feet, "By current rule, the closely guarded count would continue." Hmmmm...while this clarification would be nice, it seems that someone needs to read the definition of guarding.)
Already the rule.
16. courtside replay for state championship games
can-o-worms
17. assessing only one delay of game warning for any type of delay of game situation per team instead of one for each of the three types.
As rare as they are, why?
18. allow pregame dunking, but not hanging on the ring
How could this improve the game?
19. coach is out of box and "just coaching" - first offense = warning, second offense = T; coach is out of box and behaving inappropriately - first offense = T (submitted by Mary Struckhoff)
Good idea:
1. 28 ft coaching box
provided that the coach is coaching 
7. include a foul committed during a throw-in by the throwing team as a team control foul
Should have been that way already.
11. Only permitting players on the court to request a TO, head coach during a dead ball only
but add that the coach could only request the timeout during a dead ball with the clock stopped.
12. eliminate lag time if officials have definite knowledge of the time
20. Make signal #33 (current player control signal) also used for reporting a team control foul.
OK with caveats6. eliminate closely guarded while dribbling
Only if a shot clock were added. Don't want to see the game deteriorate from a team game to a single player putting on a dribbling exhibition.
15. allow a shot clock by state adoption
Make the clock long enough to not rush too many teams...maybe 45-60 seconds.