Approval Workflow Access

One way...

Set Review Docs so items Require Content Approval. Found in Library Settings-> Version Settings.

Turn on Versioning.

Under Draft Item Security, check 'Only users who can approve items(and the author of the Items)'.

Create a SharePoint Group for Team#2 and give it the 'Approve' permission level.

Unfortunately, they'll probably need to be able to edit in order to set the approval status.

If you don't wish to use the out-of-the-box approval workflow. Just get Team#2 members to set an alert on the Review Docs library, so they get an email when something is added.

You could experiment with the Approve permission level by creating a new Permission Level based upon 'Approve' and seeing what you can turn off. (Add and Delete items for example).

You can find 'Permission Levels' on the tool bar from Site Settings->Site Permissions.

Hope this helps.