another rules question

[Jurassic Referee]

Originally Posted by just another ref

Team A scores. B1 grabs the ball and starts to take it out. He has one foot in and one foot out, and passes to B2. I called a violation. But, what happened was that B1 realized that A was coming with pressure and that B2 should take the ball out. I was disoriented when I realized what they were doing, but the call stood. 9.2.2 Situation C is the closest thing I find to this, but at what point does this become a violation?

It becomes a violation when you think that B1 is actually making a throw-in instead of just giving the ball to B2 to make the throw-in. Judgment call iow.