Before I go down the path of annoying my Google admin, does the Account Review process work with SAML authentication? I configured OAuth, and it worked great for the main portal, but when I go to the Account Review URL, I don’t get the Google option. I’m not sure if that is because review is beta, oauth is beta, or something else, but I thought I would check before I embark on the SAML experience.
Mike you must be a strange breed of IT guy to have this uncommon level of decency !! 
, SAML should work on the other portals (except awareness and policy which rely on LDAP). Just set SAML on the “Main” authentication and enable the other portals.
Disclaimer, i have not tested this but i’m pretty sure it will work.