That, and the prospect of being exposed should anything happen to either Daniel Carter or Colin Slade are in Samoa, was the reason for calling up Taylor.
"If we lost Colin or if we lost Dan while we are away then we would need another first-five," said Hansen. "And neither Izzy nor Charles will be able to play a full game so they will be limited with their game time. He [Taylor] just gives us a bit more versatility in the group."
Slade, having played on the wing against Scotland last year, is now odds on to be put there again with one of Moala or Ngatai shaping as the probable midfield/outside back cover from the bench.
Should the former end up winning his first test cap it would be testament to his mental fortitude and resilience having endured a court case earlier this year as well as the shambolic and demoralising campaign with the Blues.
It would, however, be something of a surprise should he edge out Ngatai as the Maori captain has been a player on the rise since he enjoyed a strong campaign with the Chiefs last year.
"Charlie has been playing really well," said Hansen. "We are blessed with the midfielders we have got and probably if he played for any other country he'd have had a test by now."
Ngatai's Chiefs and Taranaki teammate, Seta Tamanivala, sits as the probable exclusion from the group that travels to Samoa. Still, while he may not feature in Apia, his call-up signals that he's a player with a skill set and physique that the selectors have identified as perfect for test football.
Only 22, Tamanivala just needs game time at Super Rugby to confirm his potential.
"He had a fantastic season last year for Taranaki and he's very strong in the midfield, he's got a lot of pace and probably disappointed in the Super competition to not get too many opportunities in what was a pretty handy midfield in Charlie [Ngatai] and Sonny [Bill Williams]," said Hansen. "When you make up the bench, he didn't bring the versatility of someone like [Andrew] Horrell. He's in behind two guys who are both here as well."