Although it’s true that Cech is older, he was at a club, playing behind one of the best organised defences in Europe, and he came here and is playing behind a defence where organising a defence seems to be an occupational hazard.
So it’s hardly surprising he is making mistakes more than when he was at Chelsea.
After Mourinho left them, it was noticeable that Coutois form dipped a bit because they weren’t playing so defensively and he was facing more shots from the opposition.
It’s a bit like Mignolet at Liverpool.
He might not be a great GK but is made to look worse because the defence in front of him seem inept at their job.
I think Wenger should look to be replacing Cech but with Ozil, Sanchez and Cazorla all needing replacing as well as needing a winger and CB, I would think a top quality GK is well down the list of his priorities.