Why is Butler not there, you ask? Because they want to keep the slow bowlers in so they can come out with an awesome run rate. If both Aussie and NZ beat US (which we assume they will) and then end up with their match drawn due to rain, the net run rate will determine who goes through. NZ don't need to take wickets - they just need to keep that run rate as low as possible while still winning.
As for anyone who might mutter that Macca is getting his usual diet against average bowlers - hey, I'm not complaining! Maybe we should use him as a specialist against lesser teams, because he certainly does better than most do against them.
Just because it's against a crap team doesn't mean 60-odd off 20-odd balls isn't a good show.
Predictable yet solid stuff from New Zealand. Shame Tuffey isn't performing lately, seriously. I don't know why he's even in the team right now, I'd rather Franklin. Ten overs against USA and no wicket is not something to be proud of at all.