The choice is clear
It makes sense for the sponsor of retirement plans to hire a professional fiduciary and transfer substantial fiduciary responsibility and all of their risk to that qualified fiduciary. Sponsors that elect this course of action are no longer responsible for the management of their plan.

This saves time and money.

The other choices are to retain a:
Plan investment advisor that is a “co-fiduciary” and receive no relief from fiduciary responsibilities and liabilities for selecting, monitoring and replacing plan investment options; or

Non-fiduciary advisor and receive no relief from any fiduciary responsibilities and liabilities at all.
This choice is an obvious and easy one when plan sponsors are fully informed.