1.  Teams don’t think how they think when planning (metacognition).
There are many different ways of thinking (Thinking Styles) that should be
deliberately engaged when planning.

2.  Teams don’t identify, then work through, an appropriate stage-wise
Thinking Process. Most business thinking requires a stage-wise Process to be successful, even decision-making. There are very few one-step thinking activities.

3.  Teams don’t think how they should think (which Thinking Styles to engage) at each stage in a Thinking Process.

A major cause of Thinking Errors is poor Contingency Thinking: “What could go wrong?” Most people don’t realise that Contingency Thinking is a stage-wise Thinking Process that needs several different Thinking Styles to be successful.

4.  They may all think the same way (naturally - because all members have similar Preferred Thinking Styles, or by GroupThink – caused by a lack of a facilitator).

5.  They don’t use Thinking Tools to guide and stimulate their thinking.

6.  The team leader can have a major impact on the team’s clear thinking.

7.  All teams are highly subjective – they all suffer from emotional involvement and can miss a blindingly obvious mistake (obvious in hindsight).