Brendon McCullum's lethal ambush of the England bowlers at the Cake Tin the other day will no doubt have got the attention of the numerous coaching entourages around the tournament traps.
Each teams' "brains-trust" of tactical boffins, those charged with constructing plans to keep their teams' bowling efforts free from renegade attack, will have been sent scurrying for their iPads, sifting through footage and statistics, searching for possible leaks that might be used to dampen down the Black Caps skipper before he lights the fuse on another Catherine Wheel of an innings.
Not since Nathan Astle was in his pomp have we seen an opening batsman run at the new ball with such vigour and intent. Possessing the fast feet and heavy hands of a champion fighter, it's clear that McCullum loves the gladiatorial adrenalin rush of advancing wide-eyed and snarling at "the quicks".
The flagrant disregard for his own front teeth is matched only by his healthy disrespect for the reputations of the world's fastest and best, skipping down at them with mischief on his mind. The impish way that McCullum sometimes, before delivery, hops toward the bowler reminds me of a cheeky schoolboy stealing a few places forward in the tuck shop queue every time teacher turns his back. The use of two new balls at this tournament plays directly into McCullum's wheelhouse, too - because the harder and faster it comes at him the better he likes it.
Given the fearlessness and firepower that he exhibits against pace, I've no doubt that some teams will already be seriously considering opening with a spinner against him. It's a fact that mishits from a 140km/h delivery frequently carry to the rope, while against the slower ball they're not as likely to. This little scam has been used to good effect by a number of IPL sides in recent Indian summers, when Bazza has sometimes been slightly bamboozled by the mysteries of subcontinental spin.