I'm catching up with this season during my quiet weekend, so forgive the belated bump to this ep. Reading a recap of this ep on another page, and someone there figured out what happened to the racks: The rookies stole them all!
I just rewatched the kitchen scene, and Annie did complain about the ovens all being full, with nowhere to cook her pies (though she earlier told Jim that her crusts were in the oven?). They also made a show of the rookies talking about being in the kitchen first, so it's possible that it wasn't production, but the rookies messing with things. Too bad they didn't show much of the chefs pulling food out of the ovens to get a glimpse of the actual situation.
Loving Jim, though. A bit of foreshadowing there in that scene when he came up and asked Annie if her tarts were in the oven, and then mentioned how much time was left with some skepticism/warning in his voice. There are a few vets competing who I really like, but I wanna see the underdog outlast them!
Bearded BBQ chef who can't cook pork and tattoo chef who can't to cook veg can leave any time, though.