Change BuddyPress Group Slugs from Groups to "Teams"

change_buddypress_group_slugs_from_groups_to_teams.php

<?php
/* Added to functions.php in the theme */
function ts_change_groups_slug(){
	global $bp;
	$bp->groups->root_slug = 'teams';
	return $bp->groups->root_slug;
}
add_filter( 'bp_get_groups_slug', 'ts_change_groups_slug' );
add_filter( 'bp_get_groups_root_slug', 'ts_change_groups_slug' );