Good Job Photo illustration by Slate. Photos by iodrakon/iStock/Getty Images Plus and Golffywatt/iStock/Getty Images Plus. Good Job is Slate’s advice column on work. Have a workplace problem big or small? Send it to Laura Helmuth and Doree Shafrir here . (It’s anonymous!) Dear Good Job, I have a co-worker, “Sandy,” who’s been driving me up a wall. She keeps offloading her work onto everyone else! Sandy is the department accountant and is meant to keep track of our budget and such, but she also has some direct dealings with clients that involve sensitive monetary-adjacent paperwork. The problem is that no one is sure exactly what she does day-to-day because she seems to offload as much of her job as possible on everyone else.…