Organizational information systems

What is the appropriate information system for the organization / business?
Does the organization need additional systems, MES for production floor management or WMS for warehouse floor management or another dedicated system? If so, which one?
Does the organization derive the administrative benefits from the information systems?
The sales people of the information systems are, naturally, interested mainly when it comes to a long-term “wedding”.
Information systems are a necessary infrastructure for measuring and improving performance
The organization needs an objective professional for the following tasks:

Characterization of the organization’s needs
Recruiting suitable alternatives and considering them
Choosing the optimal solution for the organization

Accompanying the characterization process, implementation and assimilation up to regular operation and the production of the benefits