yes, your boss can tell you root's pass and you would have rights to change settings =)
or if, for example, you need rights to change /etc/X11/xorg.conf, just add some group, for example:
# addgroup conf_op
# chown root:conf_op /etc/X11/xorg.conf
# chmod g+w /etc/X11/xorg.conf
then, he must add your user to group conf_op, and you must relogin...
That's all, you have rights to change xorg.conf