So if we sign Arriaga then I assume Coello is the player out.
I am not sure a player can recover from the kind of mistake Coello made on that square ball against Charlotte. A mental mistake of that magnitude needs a lot of positives to offset it.
"There are some people who might have better technique than me, and some may be fitter than me, but the main thing is tactics. With most players, tactics are missing. You can divide tactics into insight, trust, and daring." - Johan Cruyff