Nuno Espírito Santo had a few cracks at Marinakis before eventually being shown the door. That was in consecutive pressers right up to the last. I am sure the Don deserved all words spoken.
We then had Enzo Maresca and Ruben Amorim in quick succession setting the trend for managers this year to be volatile towards their employer’s in the presser.
So that makes Oli then the fourth in a crowd to have done it during this season alone. It has been a bit of an “in vogue” move this season. It’s not the first season that any manager has ever acted that way though. The only difference with Glasner is that he survived each and every time, which is a bit unusual.
Graham Potter spoke a few times about the challenges of managing Boehly’s unique project / demands, whilst he was still employed at Chelsea. He was maybe a bit more respectful about it, but he was definitely publicly critical of his then current employer.
Rangnick, Ten Hag, and Mourinho all criticised Man United’s leadership whilst still in-post. It didn’t lead to any of their immediate departures.
Mourinho did it at Spurs too, leading him to get dumped on the eve of the cup final.
Roberto Mancini at Man City was critical of Brian Marwood, and then of Txiki Begiristain after that.
Gregg Berhalter, Claudio Reyna, and the USMNT directors famously had a very public, very toxic, three-way melodrama over the selection of, and alleged behaviour of, Giovanni Reyna.