the blind leading the blind

US /ðə blaɪnd ˈliːdɪŋ ðə blaɪnd/
UK /ðə blaɪnd ˈliːdɪŋ ðə blaɪnd/
"the blind leading the blind" picture
1.

盲人摸象, 盲人引路

a situation where inexperienced or incompetent people are guiding others who are equally inexperienced or incompetent

:
The new manager has no idea what he's doing, so it's really the blind leading the blind.
新經理根本不知道自己在做什麼,這真是盲人摸象
Trying to learn from someone who knows as little as you do is like the blind leading the blind.
試圖向一個和你一樣一無所知的人學習,就像盲人摸象