the blind leading the blind
US /ðə blaɪnd ˈliːdɪŋ ðə blaɪnd/
UK /ðə blaɪnd ˈliːdɪŋ ðə blaɪnd/
1.
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.
•
Trying to learn from someone who knows as little as you do is like the blind leading the blind.