It’s a perfect storm. Just as senior leaders have become overwhelmed with demands and crises too numerous and powerful for any one person, a new study from Korn Ferry and Harvard finds that the majority of teams—so vital to business success—are ineffective. Efforts to improve them, centering on “building chemistry,” are based on hypotheses and hunches; leaders have no real, tangible sense of how to encourage and attain true teamwork, defined as a blend of collaboration, coordination, and partnership.

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