Roelof Botha, the chief of the Silicon Valley venture firm Sequoia, is stepping down amid a challenging period for the organization. His departure marks a significant leadership change within the firm. Alfred Lin and Pat Grady are set to assume leadership responsibilities following Botha's exit. This transition comes as Sequoia navigates difficulties that have impacted its operations. Both Lin and Grady's new roles indicate a strategic shift aimed at addressing these challenges. The leadership change reflects the firm's efforts to adapt and stabilize during this time. Botha's stepping down and the appointment of Lin and Grady have been confirmed by reliable sources.