[JRutledge]

Maybe I misread something, but I do not understand where the ball is actually located. This is also not a complete either/or situation. It is very possible that the Trail has the ball at first and the Center picks up the ball when his/her area is being penetrated by the ball handler. As the Trail official sees the ball enter the Center's area, if the Trail official has not seen the Center official pick up the ball, then the Trail would still be able to make a call. It really is not about who has the call and who does not have the call. It should be about who is watching the ball and who is not. Then if there is a call, make eye contact and decide (very quickly if possible) who is going to take the call. You just have to be aware that what the grey areas are and even if you have a call there is a possibility another official has a call as well. In those cases just take your time before coming out and signaling the type of fall.

Peace