So, just to clarify... We have two authors below...
In the meta settings for post one, we put one author G+ profile link which then shows up for that post.
However, in the second post, we want to attribute this to another author, so we put in a different G+ profile link and therefore highlighting that author in the search engines.
POST 1
<title>X1</title>
<meta name="description" X1"/>
<meta name="keywords" X1"/>
<link rel="canonical" href="X1" />
<meta property='og:locale' content='X1'/>
<meta property='og:type' content='X1'/>
<meta property='og:title' content='X1'/>
<meta property='og:description' content='X1'/>
<meta property='og:url' content='X1'/>
<meta property='og:site_name' content='X1'/>
<link rel="publisher" href="main publisher G+ page"/>
<link rel="author" href="some author G+ profile"/>POST 2
<title>X2</title>
<meta name="description" X2"/>
<meta name="keywords" X2"/>
<link rel="canonical" href="X2" />
<meta property='og:locale' content='X2'/>
<meta property='og:type' content='X2'/>
<meta property='og:title' content='X2'/>
<meta property='og:description' content='X2'/>
<meta property='og:url' content='X2'/>
<meta property='og:site_name' content='X2'/>
<link rel="publisher" href="main publisher G+ page"/>
<link rel="author" href="another author G+ profile"/>It could either be put in as a text box under the normal keyword, title, description section or it could be put in as a text box where the FB and G+ description currently reside.
Up to you but I think this would be a popular update and one that is needed with the way that big G are heading.
Holla :)