The phrase "outside experts" refers to knowledgeable people who are not directly involved in a situation or subject. They provide independent opinions and expertise from an external perspective. Full definition
A 2017 paper claims it does, but a group of outside experts disagrees — strongly. (retractionwatch.com)
Working with outside experts allows us to approach each case from the most comprehensive and thorough standpoint. (vernierlawfirm.com)
In the end, we offered financial help via modest grants and reduced sponsorship fees, plus substantial technical assistance in the form of advice from outside experts. (educationnext.org)