NEW YORK: Hill & Knowlton named Andrew Bleeker the head of the worldwide digital practice, marking the second executive with ties to new global CEO Jack Martin to take a role at the agency.

In addition, three executives with decades-long ties to Hill & Knowlton announced plans to leave the agency this week, including global CEO Paul Taaffe, worldwide marketing communications leader MaryLee Sachs, and CMO Tony Burgess-Webb.

Martin, founder of Public Strategies, was named global chairman and CEO of Hill ...