You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who introduced the concept of the 3 horizons for growth to the management world?" whose answer is McKinsey consultants.
Each document should contain about 30 words, and these documents should contain useful information.

Query: origin of the 3 horizons for growth concept
Useful Output:

Doc 1: Developed by consultants Mehrdad Baghai, Stephen Coley and David White in their 1999 book “The Alchemy of Growth”, this model categorizes
Doc 2: “The 3 Horizons existed before, as a model from McKinsey in 1974, but it was rudimentary. Their idea was that the core business could transform
Doc 3: The Three Horizons Framework was first introduced in 1999 in the book with the title The Alchemy of Growth, written by Mehrdad Baghai, Stephen
Doc 4: The Three Horizon Framework, often described as a growth strategy framework, was introduced by McKinsey consultants in 1999. This innovation
Doc 5: When first articulated by Baghai, Coley, and White in 2000, in The Alchemy of Growth, the Three Horizons model was a breakthrough. Over the