Jack Modzelewski''s years of experience working with numerous Fortune 500 companies as a communications consultant tells us that too many leaders undervalue and therefore underperform their vital communication responsibilities. They do so at their own disadvantage, and sometimes peril, in this age of heightened activism, transparency, disinformation, and disruption. Talk is Chief provides sound advice, examples, and even a list of the ''Ten Commandments of Crisis Management'' so that leaders can either avoid crises or avert worst-case scenarios when confronted with an existential threat.