Beware the Bubble

It is nice to have people agree with you, it really is.  Everyone on the same page, in full agreement, it just feels good.
Be cautious of that bubble.  In Psychology, they call it groupthink. Defined as “the practice of thinking or making decisions as a group in a way that discourages creativity or individual responsibility.”  In business, it often leads to groups of intelligent, thoughtful people making bad decisions.

Seek out different viewpoints. If you have to, designate someone as a devil’s advocate for the group, but don’t rollout a plan without having aggressively questioned your planning, your assumptions, and your belief on what the outcome will be. 
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It is not as pleasant as that big group hug, but in the end you will be better for it.