Spinners only work in tandem in sub continent pitches. Everybody knows that.
In other parts like England and Australia, only World Class Spinners will be able to take wickets. (At test level)
Patel is no where near World Class. And I don't see how Martin and O'Brien are so threatening either. Oram is also washed up. If Bond comes back, and still has it in him, then and only then will Vettori have support. I don't see how you can just base your opinions on one match. There's a reason why New Zealand are at the bottom off the ICC Rankings. They don't have quality Test batsman or quality Test Bowlers. (With the exception of Vettori in both batting and bowling)