I did what others weren't willing to do: I helped him. Instead of waiting him burn. I stepped in and really helped him. At first he was afraid of some backst

I did what others weren't willing to do: I helped him. Instead of waiting him burn. I stepped in and really helped him. At first he was afraid of some backstabbing from me. Then once we trust we cleared all problems, upgrade whole structure and finished a year long project. We did discuss, argue but once we cool off. We did get out to drink coffee as good friends then get back to work. Tl Dr -> Help him or get out. Don't be passive. Ps. My old boss had lost his mother and was not coping well. Inviting him to lunch and coffee breaks helped a long way.