I think it’s more about the fact we have a finite amount of resources and needed to overhaul the squad in order of priority first. Holding is one of the lowest earners, happy to sit on the bench and ticks the homegrown quota box. It’s easy to see why he was kept.
It’s unfortunate that we’ve had to call on him at the most crucial stage of the season but shit happens. I can’t remember a time where we didn’t suffer key injuries during a run-in that would eventually cost us. Last year it was Tierney and Tomi that were out and we had to play Cedric and Tavares who were absolutely shit.
Where we dropped the ball was not having the foresight to buy a CB last summer when it was decided that White would be moved to RB.
I’m sure Arteta’s aim is to have a squad where the technical level doesn’t drop when a cog or two is missing. With the CL to offer I suspect that those gaps will be plugged this summer. This is the difference with City who seemingly can chop and change without needing to worry about a drop in quality because they all play the same way.