CORRECTED-UPDATE 1-Ex minister Myners tears into stewardship of UK's Co-op
(Corrects 16 paragraph to say Co-op Group's stake in bank fell to 30 percent, not 20 percent) * Board not competent to perform duties -Myners * Governance structure led to horrendous losses -Myners * Funeral business could be worth 1 bln stg plus -Myners * Former bank chai
