[Back In The Saddle]

JR's cite is very direct. The definitions are slightly less direct, but still clearly gives us the same information:

SECTION 34 PLAYERS/BENCH PERSONNEL/SUBSTITUTES/TEAM MEMBERS
ART. 1 . . . A player is one of five team members who are legally on the court at any given time.
ART. 2 . . . Bench personnel are all individuals who are part of or affiliated with a team, including, but not limited to: substitutes, coaches, manager(s) and statistician(s).
ART. 4 . . . A team member is a member of bench personnel who is in uniform and is eligible to become a player.

There are clearly no players until it's time to have 5 players on the floor. If all the team members are allowed to be on the floor (as during warmups and half-time), then there are no players. They are simply bench personnel, and thus the coach gets the indirect for their mis-behavior.