Captain Brendon McCullum chuckled when asked whether he would choose heads or tails for tonight's toss in the second test between New Zealand and Pakistan at Dubai.
Judging by the first test, the decision can be pivotal to the outcome. Bat well first, as Pakistan did in reaching 566 for three, and you put pressure on the other side which can magnify as the game progresses. Australia know it and New Zealand are realising it too, if Abu Dhabi was a gauge.
Those batting second, especially visitors in foreign conditions, need significant mental tenacity and technical nous to sustain parity.
McCullum wouldn't divulge his choice - in the UAE the 50c equivalent involves calling Arabic numbers or an oil refinery - but he was left in no doubt as to its importance.
"I'd desperately like to win it because it swings the odds slightly but if we are presented with the opportunity to bowl first [i.e. McCullum makes the wrong call], hopefully we can make some improvements from our last effort. The call won't necessarily be the difference between winning and losing if we find a way to be better."