I've seen teams spend £150 million and get nowhere near the Champions League. It has taken Manchester City a billion to get there. There are no guarantees.
I've had to take a lot of stick down the years but the one thing that really got to me was when someone questioned my integrity. It's the one thing that really grates with you.
I think what I've actually achieved as a manager does sometimes get a bit overlooked, because all people think about is the media side of things. They tend to forget I've not done so bad.
Sometimes to go forward you've got to go to the depths of your own personal despair and claw yourself back. From that point, no matter what happens, you know you can do it.