Can't be surprised with fan impatience when you reek of short termism.
Moyes and Martinez got more patience because of the situation they had.
Moyes took over us when we were consistently near bottom - his target at the beginning was to avoid relegation and maybe push us forward. And he did, so we showed loyalty even when he couldn't push us past the glass ceiling.
Martinez took over from Moyes, when there was certainly a fear that losing Moyes would cause us to slip due to lack of investment. Martinez's positivity in the first year, coupled with attacking play, young players, and embracing of the club won him some spare time when the results went south (with the fans).
Koeman has come in when we expect top 7 and want to push above. Moshiri came in saying we had the money to compete. Koeman has bought a large number of players for the now, he has a 3 year contract and there has been very little implied about him 'building something'. He was brought in to steady a sinking ship and give us a platform to build something. Or at least that was the implication. He was a 'professional' that was honest and was going to raise our profile and make us run like professionals.
That narrative offers him very little cover when things go bad. Martinez had excuses - money, building from the youth, long term plans, etc.
Moyes had excuses - mostly money, but also he actually raised us a level before hitting a glass ceiling.
Koeman has left himself no excuses - he simply has to produce. And outside of Lukaku and Barkley going berserk after the injection of Tom Davies into the squad last winter...I don't see where the production is coming from.
Koeman has appeared to want to keep Everton at arm's length for his tenure. Should anyone be surprised that the fans turn especially quickly in that circumstance?
