I’d say the villains of the piece are Truss and Kwarteng, who did their sums all wrong and apparently didn’t share the info with cabinet colleagues but even more crucially not with each other!
They waived scrutiny too and subsequently trashed the Pound.
Even George Osborne(yes, THAT George Osborne) says they caused an earthquake and have trashed the Party reputation for being financially prudent, he reckons they’re finished.
Are you sure the BofE didn’t need to step in though?
https://www.ft.com/content/59c5779c-db15-4ace-a0cc-f6b8d3b03ba1