Disc is on the sideline
The around is thrown to handler 2
Defender 2 is shutting off the break continuation. Defender 3 is giving a buffer, watching handler 2 and being ready for a swap.
Handler 2 fakes the around, then dishes back to handler 3, immediately striking upfield.
Defender 3 yells Roll, and drops back to shut off the strike. Defender 2 is coming in to put a mark on handler 3.
The Roll and switch is complete.