Change the placeholder text for the post title field.

cpt-registration.php

<?php

// Add 'title_placeholder' to the array of arguments when registering the custom post type.
$cpt_args = array(
	'title_placeholder' => 'Team member name',
);

register_post_type( 'team_members', $cpt_args );

title-placeholder.php

<?php

add_filter( 'enter_title_here', 'prefix_change_title_placeholder_text' );
/**
 * Change the placeholder text for the post title field.
 *
 * @param string $title Default placeholder text.
 * @return string
 */
function prefix_title_placeholder_text( $title ) {
	$post_type_object = get_post_type_object( get_post_type() );

	if ( empty( $post_type_object->title_placeholder ) ) {
		return $title;
	}

	return $post_type_object->title_placeholder;
}