What: CMO

Where: Nortel Networks, Toronto

Why: Flaherty, who has served as CMO for two years, has overall responsibility for Nortel's global marketing strategy, brand development, advertising, and internal and external communications. Last year, she oversaw the rollout of "Hyperconnectivity," a branding campaign to position Nortel as a company that can help businesses navigate an increasing complex networked environment. This year, she spearheaded the launch of a campaign focusing on energy savings, taking direct aim at competitor Cisco Systems.