Magazine publisher Conde Nast on Friday named three senior executives to new roles, cementing the management bench under Chief Executive Chuck Townsend.

The move comes after several in-house candidates to succeed Mr. Townsend left the company this year, and people familiar with the company said it sets up an eventual CEO successor: Robert Sauerberg, who was named as president from his current role as group president for consumer marketing. Mr. Sauerberg, 49 years old, is a well-regarded executive who is seen by industry veterans...