Jon R. Katzenbach was an author and consultant who was best known for his work on informal organization. He is a practitioner in organizational strategies for Strategy&. He was a managing director with PwC U.S., based in New York.
Excerpt from Wikipedia, available under CC BY-SA 4.0.

The wisdom of teams
1993
ISBN 9780875843674
The Discipline of Teams
2002
ISBN 9780471151319
Real change leaders
1995
ISBN 9780812926262
Leading Outside the Lines
2010
ISBN 9780470589021