I disagree, a good manager should be able to explain the reasoning behind their decisions and to 'Own' them when they don't work out.
I remember wilder changing our system to a 4-3-3 away at Mansfield and us having one of the worst first half's we had under him. I think we were 2-0 down at the break. He then changed it at half time and we ended up with a draw.
When questioned about it after the game, he said (i am para-phrasing) 'don't blame the players, it was my decision to change the system and it clearly didn't work, i take full responsibility. After we changed it at half time, the players were excellent in the second half'
That's the kind of response that gets my respect. Own your mistakes, show that you understand what they were, why they happened and adapt accordingly to avoid them happening again.
Unfortunately you wont get any apology from old Curly Chops, hes never wrong you know!!