I was promoted a few months ago and really enjoy my current role. I've been concerned about the woman who took over my old job, and did wonder if I was being paranoid. My poor dp has been putting up with my worries for months, as I didn't want to spill my woes to my work colleagues.
Recently I read about 'underminers' and thought omg, she's one! Unfortunately our managers think she's great as she has a 'can-do' attitude.
She was really difficult to train as she didn't listen to me and thought she knew best. She offers to help colleagues in my old team, then tells management how much she helped because the colleage was too busy. She offers to help out by doing work I and my colleagues should be doing, without asking first or telling us about it.
The book I read recommends avoiding the person, avoiding working with them and avoiding her at social events. Also not running to your manager or colleagues as the one thing you need to avoid is being seen as paranoid. It says you need to handle the underminer alone, like a lone sheriff in an old western film.
Thankfully I've done most of this instinctively, but it's really hard work and my poor dp has had to take the brunt of my complaining about the situation.
Any advice on how to continue this strategy without losing my rag eventually would be very much appreciated!