Adds details on transition, background Dec 13 (Reuters) - Australian biotech giant CSL Ltd CSL.AX on Tuesday named Paul McKenzie as the chief executive officer and managing director of the company, succeeding Paul Perreault. McKenzie, who is currently CSL's chief operating officer, will take over from Perreault in March next year. McKenzie, who joined CSL in 2019, will step into the role of chief executive at a time when the company is experiencing a dip in profit due to lower blood plasma donations and sky-high inflation.