[KWH]

The confusion by some of the newer officials is simple.

The down ended with B in control of the football. 2-32-1
The down ended with B in possession of the football. 2-32-1
The down ended with B in Team possession of the football. 2-32-2
But wait...
B did not gain possession with "Clean Hands" as they fouled prior to gaining final possession 10-2-2
B was not awarded a new series 3-4-3b

The result of the play originally asked by Terpzebra is as follows:
A is awarded an automatic first down due to the DPI 7-5-10
The clock was stopped for an officials timeout, after a foul to administer a penalty 3-5-7j
I am fully aware we would have stopped the clock anyway because B had intercepted the football,
HOWEVER, the penalty flag trumps the stopage for change of possession.
After the officials sort it out, B is NOT awarded a new series.
Therefore...
The clock shall start on the ready for play 3-4-2