It's a team of XI, not XIV

It is now left, not so much to the managers, the coaches and the match referees, but more so to the umpires. They are the ones who will decide what "extreme circumstances" are and the hope is that, in the interest of the game, they will be strong and firm.

"Extreme circumstances" should be emergencies, the call of nature and nothing else, and that should involve just a few minutes off the field.

"Extreme circumstances" should not include those who are unfit and who need a break after bowling a few overs or after chasing a few balls, those who, because of their fitness, should not have been selected, or those who, despite being professionals, are simply too big, too much of a star, to stay in the field for any length of time.