Last season’s relegation battle was a culmination of all of his mistakes.
However, the woes of that campaign can be traced back as far as 2016, when Moshiri entrusted Ronald Koeman with two summer transfer windows and a transfer war chest to bolster his squad.
Whilst the summer of 2017 might be more notorious for the £142.38m spent on plenty of duds, Everton had broken their transfer record the previous year to sign Yannick Bolasie.
Purchased from Crystal Palace for £30m, the tricky winger made the move to Goodison Park in the hope that he would add explosive pace and physicality to Everton. He was also handed a bumper £75k-per-week contract, further compounding the misery that his stint on Merseyside would bring.
In his debut season for the Toffees, he had scored once and set up four goals in 14 Premier League appearances, before an innocuous challenge against Manchester United saw his career changed forever. He had done serious ligament damage to his knee and would only play 32 games for Everton before various loan spells saw out his contract.
Bolasie was never the same, as his injury had stolen the quick turn of pace which made him so deadly, making him a shadow of the player that he once was.
It is a tragic tale of what could have been, but ultimately he would end up costing more than £1m for every game that he played for Everton when including his salary.
It is a testament to how far his career has fallen that he can now only muster games in Turkey’s second division, turning out for Caykur Rizespor.
Although his statistics never set the world alight for Crystal Palace, scoring 13 goals and setting up 30 in 144 games, Evertonians can feel aggrieved that they were deprived of seeing the Congolese wizard in full flow.
To spend that kind of money on him seemed crazy anyway, but how his Everton career panned out only further emphasises another of Moshiri’s mistakes.
In this particular example, he is not quite as culpable as some of the other transfers, but it still denotes an awful financial blunder from the Iranian.