How does a social media manager help companies avoid harm or lost opportunities

Please write one paragraph educating the reader about how a social media manager helps companies avoid harm or lost opportunities. This paragraph must be well-developed, free of grammar and mechanics errors, in business writing style, supported with reference to THREE DISTINCT authors and source types, and with at least a few sentences of YOUR OWN unique, valuable claims (personal evaluations) about the sources. For example, answer how important/significant is the source? What do you think about it? Give your own opinions about the sources or the information you stated.