I dont think you read the op I have been having success for years now all of sudden I dont have success. i dont think my approach is bad son. Like i said before I was doing fine and then all of a sudden I cant even win a game against league two opposition. so like i said before I dont know what happened, you dont go from having multiple seasons winning titles then getting sacked because all of a sudden nothing is working for you.
I did read the OP.
if you have gone from winning to not winning then you have failed to adapt, hence your approach is bad.
If you dont know whats happened, then you have failed to spot the signs of failure, hence your approach is bad.
If you are Manchester United, and you are consistently playing like league two side, your approach is bad.
And i'm not your son.
If you can give us some screenshots of what your side looks like, you team instructions, players instructins, screenshots of recent match stats we might be able to help you