While producing the Team Plan to deliver the agreed Work Package, it became apparent that...

Consult the Senior Supplier to assign suitable reviewers.

Discuss the situation with Project Assurance and agree the changes or additions to the reviewers. Advise the Project Manager of this risk.

Ensure the Quality Register is updated with details of the agreed amendments to the reviewers.

Notify the Project Manager by raising an Exception Report explaining that the original reviewers are unsuitable.