Minimal permissions needed for just approving offer letters

Summary:

Minimal permissions needed for just approving offer letters

Content (please ensure you mask any confidential information):

We have a use case with a set of users who don't need to use Taleo for anything except reviewing and approving offer letters. Is there a way to set up a role with permissions that allow for that without letting them see or access anything else?

Version (include the version you are using, if applicable):

TBE

Code Snippet (add any code snippets that support your topic, if applicable):