This symptom may be evident where group leaders express the view that a consensus prevails. Exercise Read Cornelius Ryan's book, A Bridge too Far, and evaluate the pre-campaign intelligence information available to the 1944 commanders of the allied forces. Such behaviours lead to uncritical thinking, acquiescence and conformity in decisions. The expertise that members have to offer is not used effectively. This is akin to self-censorship.
Silence contributes an illusion of unanimity.
Some of the group memebers might have a private opinion about the goals of the group but, again, no one wants to speak up. He offers recommendations to avoid bad group decisions. Challenge the data - assess its significance and reliability. This feedback and examination process needs to seen as a contributor to quality and not a gripe or complaint mechanism. Group cohesion as a problem-analysis and solution development unit is assisted as difficult tasks are decomposed and alternatives properly synthesised.