Any one of these on its own, is a familiar piece of organisational thinking. There is no shortage of strategy frameworks, leadership models, teamwork tools, culture diagnostics, or brand canvases in the world.
The value of the five is in treating them as a system. A strategy problem often turns out to be a leadership problem. A culture problem often turns out to be a teamwork problem. A brand problem usually sits further back, in the things producing it. This is why working a single area in isolation is the most common reason interventions fail to stick.
The discipline is to read across all five and find where the real work sits.
In practice, an engagement usually starts with the area producing the most visible friction and works outward from there. The assessment conversations reveal the connections, and the work that follows almost always touches several of the five, even when the original brief named only one.
This is the methodology I call On The Same Page. The forthcoming book of the same name is the long-form version of the argument. This website is the working version.