Man, Ivana lucked out there (and you could see it on her face for a second after the "oh god oh god oh god" moment -- that same evil smile that Jasmine had on American Idol after better people were canned).
They could've knocked her for so many things -- the time wasted naming every flavor imaginable (baklava?!), the time wasted cold-calling restaurants only to blow the appointments off impulsively after seeing the other team's plan (apparently they didn't pay attention last year when the players used contacts that they'd made previously later in the competition), the utter lack of leadership, the inability to see across the freaking street to find the other cart.
Even though Stacie is a total liability and loose cannon, I don't think she would've been fired. Ivana was on the block (and her name doesn't help, heh).