At last year's world championships - with Peter Latham in the team instead of Gate - New Zealand finished fourth. There is work to do.
The incumbent quartet fit the mould BikeNZ is seeking from the data crunched by the five statistical experts at the Invercargill meet. Ryan leads the team off the line with explosive power followed by Bewley's fast-twitch fibres maintaining a targeted speed. Roulston would have fitted into the three or four berth reserved for those who mightn't be the fastest over short distances but can sustain their speed through sheer aerobic base fitness. However, Sergent was always guaranteed a spot as arguably New Zealand's most gifted current cyclist; Gate's credentials were vindicated by the BikeNZ numbers.
In Roulston's defence, he tried to work his new contract with RadioShack-Nissan-Trek around the team pursuit Olympic selection and freed up what was considered a suitable amount of time to prepare.
There is irony in the fact he is actually achieving at the sport's highest level, signing a professional deal to race in Europe. That irony is underlined by Bewley having his contract with RadioShack severed last month in the team merger. Regardless of what deal Bewley now signs, he can negotiate and dedicate time away to pursue Olympic glory.
Ultimately sympathy in Roulston's axing has to lie with BikeNZ. Roulston was not in the top four riders, he will be 31 in January and BikeNZ had 10 potential contenders to test.
As part of International Olympic Committee provisions, they can take a maximum of eight male athletes for the five revamped track events at London. Three of those are sprinters, another is likely to be Shane Archbold, who took silver in the omnium at the world championships in April; the remainder are pursuiters.
BikeNZ and the New Zealand Olympic Committee are understood to be exploring the option of keeping another pursuiter on standby outside the Olympic village in case injury strikes. Even then it's unlikely to be Roulston. His best shot at London appears to be the road team.