Marianne Gambelli spent years trying to sell ads on NBC to sundry advertisers. Now she has moved to the other side of the haggling table. Independent ad-buying shop Horizon Media said it had hired Gambelli, who until recently was head of ad sales for the NBC broadcast network, as its executive veep and chief investment officer....
Marianne Gambelli spent years trying to sell ads on NBC to sundry advertisers. Now she has moved to the other side of the haggling table. Independent ad-buying shop Horizon Media said it had hired Gambelli, who until recently was head of ad sales for the NBC broadcast network, as its executive veep and chief investment officer....
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