I just can't see how Jo did anything else but mismanage the task from start to finish.
Love the last minute buck passing on the tyre issue.
I've frequently had issues with HR staff jobsworths when I worked in large organisations and she just puts into practice everything I've ever suspected about them, particularly at the top of the tree.
She is just being kept in to make the programme watchable and no-one should be in any doubt of that although it's a bit unfair on the rest of her team that she has this "makes excellent viewing, must be kept in as long as possible - immunity" from being fired.