I'd say it's on par or slightly worse.
Mark was running the defense, but it was as much Golden's brainchild as it was his. Then you consider their friendship, firing him would've been like firing himself.
Neither had any support, but there's universal disdain for Gattis. There's no attachment or reason you can't fire him. As bad as the defense was during AL and Mark, the offense under Gattis is worse.
I can undestand why Mark wasn't let go. While it ultimately cost Golden his job (amongst other things), I do respect his devotion to his and Mark's friendship. You're lucky if you have one ride or die friend like that. Gattis, I don't get at all.