Berlusconi messed AC Milan...Glazers want to appreciate Utd's value before the sell it, for that reason they won't allow it to decline. Remember also the global financial crisis has really affected Italian teams e.g. Juve contend that they cannot refuse a good offer for guys like Pogba...that's why even Moyes has had the temerity to scout guys like Marchisio and Vidal. Spain has also been heavily affected by the aftermath of the crisis, hence the influx of players from Spanish clubs into England.
But I agree, a brand can come crashing down very easily.
BEER IS LIVING PROOF THAT GOD LOVES US AND WANTS US TO BE HAPPY!