William J. Brown, Hays W. McCormick III and Scott W. Thomas
The typical, and primary, root cause of [the Nirvana] AntiPattern is the misguided notion that conflict is bad, and therefore should be avoided at all costs. In reality, conflict in the form of tension … is a necessary part of any difficult task that involves intelligent people who care about their work.
From the book AntiPatterns and Patterns in Software Configuration Management