It's a far cry from Steve Hansen's dilemma. The All Blacks coach has four quality first-fives to choose from - Dan Carter, Aaron Cruden, Beauden Barrett and Colin Slade. The biggest challenge for him will be deciding who to leave out as he looks to select his strongest line-up for his team's last test of the year.
Cardiff Blues coach Mark Hammett, formerly of the Hurricanes and Crusaders, has vowed to ease Anscombe in slowly, but the injury and form issues around the Wales first-fives could force Gatland's hand for next weekend's test against South Africa.
All Blacks flanker Sam Cane, a friend and former teammate of Anscombe's, said his mate was capable of the step up, but possibly not this early.
"He's only been over here for a week or 10 days I suppose. It would be a pretty big call to get him straight into that environment. He's a quality player and has a lot to offer and is still young so has a lot of improvements to make as well. He's a hard worker, I can see him fitting in well over here. It's a big step for him and to make that call early in his career. He's obviously backing himself. For me, having played with him and as a mate I hope to see him go well.
Asked about Anscombe's decision to set his sights on Wales rather than the All Blacks, Cane, who played alongside him in New Zealand age group teams and the Chiefs, said: "In one sense he's lucky to have the option to represent Wales and represent his mother's side of the family, but I don't envy him having to make a tough decision like that when he's grown up with the All Blacks as his main goal."