A simple way to break out of your own pattern is to see things the way others do. So - ask!  Involve others.  Skills that help you do this - listening, empathy and understanding different personalities traits - help you achieve this.  We are also pre-adapted to use another technique to achieve the same effect - if you can’t involve others in practice, you can do so in thought. Either by visualising the response of someone you know, or by role-play, you can bring other perspectives to bear on issues and situations.  Your mind has an amazing capacity to model and predict the responses and actions of others.

As an aside, the fact we have this talent reflects one of the most plausible ideas about the evolution of intelligence, which is that this evolved because we live in social groups.  This is the "Machiavellian" theory of intelligence - that it is the result of an evolutionary "arms race" to have better and better ways to model and deal with other people, and their behaviour.  Either way, working in groups is probably the most complex thing you'll ever deal with.  See "Facilitation".  This is also why ideas about Emotional Intelligence are important

Another excellent resource in this area for people working in large organisations is Peter Senge's " Fifth Discipline Field Book", ISBN 1-85788-060-9.  Subtitled "Strategies and Tools for Building a Learning Organisation", this book sets out five areas that reflect the application of many of the ideas on these pages in large organisations.  The concept of Personal Mastery, Systems Thinking, Mental Models, Shared Vision and Team Learning offer a very good framework for application of these ideas.