(Bloomberg) -- Credit Suisse Group AG paused the launch of a credit fund run by star trader Hamza Lemssouguer as it dials back risk in the aftermath of the twin implosions of Archegos Capital Management and Greensill Capital, according to people familiar with the decision.The pause marks a shift for Credit Suisse, which last year lured Lemssouguer back from Ken Griffin’s hedge fund Citadel and gave him a new role overseeing the launch of a credit strategy in the asset unit.