How to get rid of the worst manager ever at our local watering hole?

somehow this person became " manager" of our local pub , my understanding is she got the job during covid cause original manager wanted to leave and no one else wanted the job. however now its becoming clear she is way under qualified and has no clue what she is doing. and place isn't even busy most of the time.

her plan to bring in business is to stop doing live music on Friday / Saturday nights and play loud play lists from her cell phone instead. and to post pictures of " food " to an instagram page that has no traffic and only followed by people who already go there or been years ago. she actually fired a server last summer cause she went to college and was no longer able to work full time.

where is the owner i have no clue?

i also found her linkedin page and it states clearly that she has no experience and hadn't even worked at any pubs/bars before ours , her most recent job was at a real estate office doing marketing. she only has a college diploma in advertising/marketing but nothing in business management or small business.

Updates
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the place is apparently trying to make some changes and does suddenly have a "new menu "and some drinks although haven't been in to see it. manager still there as far as i know , think the owner fails to see what the issue is , new menu can only go so far and people more went there for the scene and atmosphere not the food
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the place ran perfectly fine without her , she wasn't there last night and place actually busy. they also had live music after not having any for months. too bad she wasn't there to see what the place should normally look like on a Friday night with actual customers having a good time.

how she ever became manager is beyond logic , she brings nothing and place was actually less busy under her command. does the owner not realise how much of a disaster she is. like what does she bring?
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she is still there , suppose to be the start of the busy holiday break season but will see how busy it really is and if there is any live music or not at this point it could go either way and i don't really have any expectations
How to get rid of the worst manager ever at our local watering hole?
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