WP_Query by Custom Post_type and Multiple Custom Taxonomy values

<?php $loop = new WP_Query( array( 
    'post_type' => 'team-members',
    'showposts' => -1,
    'tax_query' => array(
       'relation' => 'AND',
        array(
            'taxonomy' => 'department',
            'terms' => 'executives',
            'field' => 'slug'
        ),
        array(
            'taxonomy' => 'city',
            'terms' => 'portland',
            'field' => 'slug'
        )
    ),
    'orderby' => 'title',
    'order' => 'ASC' ) ); ?>

	<?php while ( $loop->have_posts() ) : $loop->the_post(); ?>

			<h3><?php the_title() ?></h3>
			<?php the_content(); ?>

	<?php endwhile; ?>