1. Bad team chemistry, non-unity on what everyone actually wants to build. Thus constant debate on what and how something should be done. Which causes certain people to start giving up on the cause. Leaving the morale of the team to be rather negative.
  2. Pride. Certain members want to be superstars or care too much about their ideas which make it untoppeable.
  3. Ignorance. When it gets too deep into disbelief and stupidity. People start ignoring possible errors and just want to get things over with