The Structure of Concern Project compares many theoretical models from many disciplines to the Adizes PAEI model, arguing that they must all be reflecting the same underlying phenomenon. One concern structure model is described below.
Bill Birnbaum is a strategy consultant with decades of experience helping management teams define their business strategies. In a book called Strategic Thinking: A four-piece puzzle (Birnbaum, 2004), he offers four key components of strategy that follow a concern structure pattern.
P - Achieving and maintaining focus
A - Managing both projects and processes
E - Leading and motivating people
I - Understanding and responding to markets and customers