Almost every aspect of the club is overseen by Tan or employees that have been put in place by Tan.

He has been in place over a decade and has picked the following managers to take this club forward - Malky, Ole, Slade, Trollope, Warnock, Harris, McCarthy.

Whether you agree with them or not he picked them.
For me it is rich to pick a man and then be unhappy with spending and signings that you have signed off.

Tan picks the board, the manager, the people in charge of the academy, the tea lady if he chooses. He oversees everything and can change what he likes when he likes, even the kit.
If the board he picks have picked the wrong manager then that is on him. If they release funds for a signing for a manager that they have picked then sorry that again is the fault of the owner.

We can argue the toss about the latest manager who has been installed to be shot at all we like but unless Tan changes his thinking on the way the rest of the club works then he will continue to make the same errors again and again. Just changing one man over and over will see very little change long term.

You can't bask in the glory of the right decisions you make and then put on the naive act when things go wrong. You either have that footballing knowledge or admit you do not and employ somebody that does.

For me, as a club we are going around in circles. Let's say we made the play offs and miraculously got promoted this season, does anybody here think the people in charge here above the manager would have any clue how to keep us up?

Cardiff City at the moment is like groundhog day.
Pick a manager, give him money/or not based on a manager stinging you previously (a manager you picked and signings you agreed to). Hope for success and if it doesn't work sack him and change the manager while keeping almost everything else constant.

Tan dictates almost all aspects of the club and it is Tan who should be held accountable. Slating the latest manager in charge isn't going to change anything because the decision makers here aren't doing anything differently and won't be doing any time soon it seems.