ON FEB. 17, VAN TOFFLER, a 28-year MTV veteran and key booker of the Video Music Awards, announced he is stepping down in April as head of Viacom’s Music and Logo Group to launch Below the Radar, his own content company. Two days later, MTV/Comedy Central vet Doug Herzog, 55, was named head of the newly formed Viacom Music and Entertainment Group, overseeing MTV, MTV2, Logo, VH1, Comedy Central, Spike and their accompanying digital properties. Nickelodeon’s Cyma Zarghami, 52, takes on a similar role for the Kids and Family Group. On Feb. 18, Viacom’s stock was down 19.2 percent from the same date in 2014.
Toffler, 56, who joined MTV in 1987, is the last departure of the original team of top executives that shaped the network’s music identity, including…