I suggest that they use a chess clock.
For each fifteen minute segment each debater gets 450 seconds.
As each debater finishes he or she hits the switch which turns off their clock and turns on their opponents clock.
When a debater runs out of time his or her microphone is cut off for the remainder of the segment.
When both debaters have run out of time, the segment is over.
This will force each debater to come up with brief answers.
This will force each debater to come up with brief answers.
I think I want Slojo to ramble. The longer he does, the more in the weeds he sounds.