In the profession built on designing the right solution for a business problem, it surprises me sometimes that businesses or colleagues consider one methodology

In the profession built on designing the right solution for a business problem, it surprises me sometimes that businesses or colleagues consider one methodology (like Agile) to be a one-size-fits-all for software development projects. There is a rule in the world: no single solution can be applied to all problems alike. One-size-fits-all is always, always a lie, no exceptions. A software project is a problem that needs to be solved according to its needs. The skills required, the communication, infrastructure and metrics always differ. A good manager will never fully subscribe to any methodology, but instead will be truly "agile", or actually flexible, drawing inspiration from different methodologies where it's needed, knowing their team very well, and recognizing what's needed for their team to get the job done in the best way possible.