[boblebricoleur]

I'm sure there are people out there that are impervious to feedback and believe they have all the answser.

I've also seen countless of young engineers starting to welcome managers' feedback and "showing" their will to improve. Then, gradually,noticing their management incompetence (technical and/or managerial) and start "saying" stuff to avoid confrontation.

Self reexamination and accepting feeback is great to improve but what if the feedback is just plain wrong or contradictory ?

A lot a "sayers" in your team can be a red flag for your management skills.