The Client may benefit more from the Designer's work if the project is approached in terms of problems and goals.
In my years of experience, I have encountered many clients who seek someone to help them design (note the emphasis), instead of looking for someone (preferably a professional) who will help them find a solution to the problem from a design perspective.
Usually, this phenomenon occurs because the Client searches for a Designer at the last minute, when the project has already been completely decided by the Client. This provides a disadvantage to the final result of the project and the objective of the Client. Don't get me wrong, Designers are not the most important part of the game; no one is more versed in the characteristics of a company and its needs, than the Client. However, respecting this same paradigm, it is also true that no one knows more about the process and potential of design than a Designer.
When the Designer is included from the start, another source of ideas and solutions becomes available.
End of Part 1