I have recently been put in charge of 5 members of staff. 4 of them I get on with brilliant. One of them is a right handful-- one minute being paranoid and rude, the next being super sweet, sending me 'joke' emails etc. I can't make head nor tail of her attitude, she is relatively good at the job and I give her credit where credit is due.
Am at a loss as to how to handle her. Any advice?