I've been asked to temporarily manage a team - to help raise their performance. One of the team is very impressive, very passionate and hard working - I really admire her. But I am finding her exhausting. Everything I ask the team to do she pushes back on. I've tried every technique including speaking to her alone, as part of a team,, consulting with her before we do anything ,providing long explanations, doing half of the work myself by way of example and asking others she respects to speak to her but nothing works. She speaks over me in meetings and insists on working on other documents every time we speak/have a Teams mtg.
Today I lost patience - I'm not proud and want to learn how to manage the situation better. I had commissioned a piece of work for a senior manager, asked for an update and was told that she had told the person not to do it. The work has to be submitted tomorrow- I called her and asked what had happened. She simply said she didnt think it was necessary. I was quite short with her saying I was disappointed that she hadn't even consulted or informed me. I feel bad but we can't go on like this-it's exhausting. Am sure she's not happy either - I have tried to have this conversation with her (how can we work better together, how I respect her, want it to work etc) but just don't seem able to get though. I feel I not being heard. Any suggestions for how I can managed the situation better? Thank you.