Without a mapped library, every recommendation starts from scratch
Every advisor eventually builds a mental list of "things that usually work." The problem is that mental list lives in one person's head, doesn't scale past the advisor's own bandwidth, and gets reinvented slightly differently every time under deadline pressure.
Worse, a recommendation built from memory instead of a structured mapping is more likely to be vague. "Improve your marketing" is a direction. It's not a strategy anyone can act on this week. Vague recommendations are exactly the kind that stall: a specific, named play with a clear trigger is far more likely to get implemented than a general suggestion. More on this in why clients don't implement business advice.
A library that maps problems to specific plays removes the guesswork and the inconsistency that comes from relying on one advisor's memory.