(Bloomberg) -- Credit Suisse Group AG will take a 4.4 billion franc ($4.7 billion) writedown tied to the implosion of Archegos Capital Management and replace more than half a dozen executives in response to the firm’s worst trading debacle in more than a decade.The charge will result in a pretax loss of about 900 million francs for the first quarter, the bank said in a statement Tuesday, putting it on track for its second straight net loss. Credit Suisse scrapped bonuses for top executives, cut its dividend and suspended share buybacks to protect its capital.