Many people have stages in their career where choice and change are not an option. For most of the world's working population the opportunity to choose what they do is either non-existent, insignificant or so fleeting that by the time it arrives the chance to act has already passed.
If we imagine a scenario where our opportunities could only ever be small and rare (as well as applying ourselves diligently) managing our opportunities well is one of the few things we could do to progress our career.
Opportunity management is about recognising the situations that present us with a choice. Even if it seems insignificant at the time. With a clearer idea of what's important to you, what you are good at and what keeps you going, comes the opportunity to make choices that work in your favour. The knowledge that can help change work for you.
It's not just ourselves that we have to consider in this equation but if you are in a difficult situation and looking for something to change -- or change is being forced on you -- it can be a good place to start.