I think the major issue isnt that we missed out on a 34 year old, who no one knows if he could handle the league or how long he could keep performing at the top level at his age, its more that our problem last season was defensively, and right now, our defence is significantly worst than last season.
The flappers have every right to be flapping right now, that doesnt mean if we manage to sign full backs they were wrong, were in preseason and our only first team full back is Kolarov. That is a very bad situation to be in.
Last season we started it with 3 center backs (one of them Kompany and injured all the time), 2 forwards, and 4 full backs over 30. Txiki put us in a bad situation at the start of last season, hopefully we can improve that defence, because right now it isnt very good. If the window closes and our defence is still worst than last season, then it will be time to look at removing Txiki. You cant underperform like he has for so long. However, we are all jumping the gun, he still has plenty of time before the end of the window. If he pulls Fabinho, Walker and Mendy out of his a**e, ill be anointing him the king of Manchester.