Changing posts order on a page

posts, in descending order by the title:
this is a format of post order by it’s title to add title

query_posts( array( 'category__and' => array(1,3), 'posts_per_page' => 2, 'orderby' => 'title', 'order' => 'DESC' ) );

And it’s your code want change

global $post;
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
query_posts(array(
    'post_type' => 'staff-page',
    'paged' => $paged,
    'order' => 'ASC',
    'orderby' => 'title'
    'posts_per_page' => 5
));
?>