Call it the drive for five or the fix for six.
The demise of Jesse Ryder's World Cup chances and likelihood Brendon McCullum will open for New Zealand at one-day international cricket's showpiece means, with 83 days until the tournament starts, there's a situation vacant at No 5, or possibly No 6, in the order.
Originally finding a second opener to join Martin Guptill was the problem but, with all indications McCullum is keen to jump back up the order, the 'situation vacant' is now further down.
With Kane Williamson and Ross Taylor ensconced at Nos 3 and 4, Corey Anderson at either five or six in the order and an XI completed by Luke Ronchi, Daniel Vettori or Nathan McCullum and three pace bowlers, that leaves one hole.
Tom Latham and Jimmy Neesham and to a lesser degree BJ Watling look the obvious contenders with Dean Brownlie, Colin de Grandhomme and Colin Munro worth watching on the current New Zealand A tour.