Thursday, Mar. 19, 2009

John Chambers

AGE: 59
OCCUPATION: Cisco Systems CEO
PREVIOUS APPEARANCES ON THE TIME 100: 1

PRO: Rather than hibernate during the slowdown, Chambers has opted to keep on spending, acquiring the instant-message provider Jabber and management-software company PostPath.

CON: Some investors worry that mergers and acquisitions are too risky at the moment.