just another ref wrote3-3-3
A substitute becomes a player when he/she legally enters the court.
Right! So all those bench personnel people become players as soon as they come on the floor (legally) for the jump ball. They are players, not substitutes; so any technical for the illegal jersey will be a player technical and NOT charged indirectly to the head coach.
My point was the technical is one or the other, it cannot be both, can it?
You are correct, because a team member cannot be both a substitute AND a player. Therefore, any technical foul assessed to a team member must be EITHER a substitute technical OR a player technical.