Creating a positve culture takes time as its about changing behavious.
Unfortunately, creating a negative culture takes less time.
Have you ever been responsible for creating a team culture? Pearson sa Cassidy is psychology knows all this and that you can't change a football clubs culture quickly, you have to be invested for the long hard yards.
The trouble with all this is that if Atkinson had booted the ball into row Z of the top tier of the Lansdown stand, this nonsense thread probably wouldn't have even been posted.