My colleague and I do the exact same role although our categories differ, but that doesn’t mean we don’t sometimes work from each others (basically it’s not strict)
Our manager asked her to complete a specific piece of work. Colleague then told me it was my work to do and I should start it instead.
It genuinely wasn’t that she was incapable of doing it, it was purely that she just didn’t want to do it - despite management giving it to her to complete.
I would genuinely have been happy to take it from her if she’d said she didn’t understand it, or that her workload was too high and I had more capacity - absolutely fine. But I’m not being given work to do on the basis someone else just doesn’t want to do it. Aibu?