Nielsen (NYSE: NLSN) today released its Annual Marketing Report: The Era of Adaptation. The report delves into how marketers are revamping their strategies after facing and mitigating the disruption caused by the COVID-19 pandemic. It found that while marketers at organizations of all sizes rank customer acquisition as their top objective in 2021, smaller companies are more focused on customer retention than large companies. To achieve both of those goals, social media, search and video rank as the top channels companies will invest in over the next 12 months, but they need to go beyond only these channels to acquire and retain customers.