Working with multiple authors, how can I alter the output of the author's names?

[NWTD]

I'm using the Co-Author Plus plugin on my site -- in order for it to work on this framework, I'm using the Genesis Co-Author plugin, as well.

I'm attempting to add more information to the output of the author, by using Advance Custom Fields. In the user's profile, I have a new field for their school/organization, in hopes that the output in the post info, will list the author(s) followed by their school/organization. I attempted to use after="{my code here}", to the shortcode [post_authors_post_link] that's used in the above mention plugin, but all it did was add my code to the end of the list of authors.

I think that I need to attempt to alter the output of the [post_authors_post_link] shortcode with a foreach statement, and add my coding there for the Advanced Custom Fields.

Here's the coding I'm trying to add to the end of the author's name:

$author_id = get_the_author_meta('ID');

if(get_field('school-organization', 'user_'. $author_id ){
     echo '<span>' . the_field('school-organization', 'user_'. $author_id ) . '</span>';
}

[Brad Dalton]

1. You can take the original function for the post authors link and use it as a guide to create a custom shortcode which includes the value for your CF in the output..

add_shortcode( 'post_author_posts_link', 'genesis_post_author_posts_link_shortcode' );

function genesis_post_author_posts_link_shortcode( $atts ) {

	$defaults = array(
		'after'  => '',
		'before' => '',
	);

	$atts = shortcode_atts( $defaults, $atts, 'post_author_posts_link' );

	$author = get_the_author();
	$url    = get_author_posts_url( get_the_author_meta( 'ID' ) );

	if ( genesis_html5() ) {
		$output  = sprintf( '<span %s>', genesis_attr( 'entry-author' ) );
		$output .= $atts['before'];
		$output .= sprintf( '', $url, genesis_attr( 'entry-author-link' ) );
		$output .= sprintf( '<span %s>', genesis_attr( 'entry-author-name' ) );
		$output .= esc_html( $author );
		$output .= '</span>' . $atts['after'] . '</span>';
	} else {
		$link   = sprintf( '%s', esc_url( $url ), esc_html( $author ) );
		$output = sprintf( '<span class="author vcard">%2$s<span class="fn">%1$s</span>%3$s</span>', $link, $atts['before'], $atts['after'] );
	}

	return apply_filters( 'genesis_post_author_posts_link_shortcode', $output, $atts );

}

Or

2. Filter it using:

genesis_post_author_posts_link_shortcode

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