How should data science employees be evaluated?

It is known that most of the data science initiatives fail. For most companies, the return on investment for data science teams is far lesser than a team of data analysts and data engineers working on a business problem. In some orgs, data scientists are now being seen as resource hoggers, some of who have extremely high salaries but haven't delivered anything worthwhile to make a business impact or even to support a business decision.

Other than a few organizations …

analysts business companies data data analysts data engineers data science datascience data science teams data scientists employees engineers investment science scientists team teams