How I work will ultimately depend on the task at hand, but for most strategic undertakings I follow what I call the SRC approach; sense-making-response-capitalization.
The extent of the sense-making, a form of advanced diagnosis, will vary but invariably provide value; there is nothing as cost saving as getting something correct the first time.
From there, we identify the proper response and capitalize on any opportunities that we unearth as a result in order to maximize financial value.
This may be provided analysis, strategic formulation, executive presentations, workshops or training based on what I find relevant and you deem desirable. But we know that, because we have both been here before.