Overview

• Officials doubted Vennells' suitability as CEO five years before her resignation.
• Concerns included poor people management and lack of understanding of political considerations.
• The Horizon IT system led to wrongful prosecutions of over 900 sub-postmasters.
• Post Office board members and government officials questioned Vennells' ability to lead.
• Vennells admitted to being 'too trusting' and was criticized for her handling of the scandal.