research question about window managers
kinda of a linux newbie here
I was doing some basic research on the difference between window managers and desktop environments like Gnome. As I understand Gnome has an underlying window manager that it utilizes like Metacity, or on some distros Sawfish.
My question is can other window managers be set up to be the underlying windowing system to run in gnome. For example FVWM, ICEWM or blackbox.
or is Metacity and sawfish the only window manager that can be configured to interface with Gnome?
and where does x11 lay in the whole scheme of things??