The argument isn’t that you can’t criticise a manager. It’s
“Do you Poster A really think that if Slot had listened to you or you were in charge of this squad that you could have done better than where we are (11 points clear with 7 to go) because you would have played Endo and Harvey more at just the right points?
Furthermore do you think that with you being the fyds to Slot’s Fagan, that this squad could have been guided to multiple trophy wins having lived the reality of last year and 3 years ago when we went for it and came away with nothing that we would swap this position for?”
If the answer is “yes” then just state that boldly and people will draw their conclusions on Poster A’s rating of Poster A’s knowledge, ability and reality appreciation.