Big clubs in smaller leagues in Europe(Even giants like Ajax and Benfica) become prey for even medium sized English clubs.
The allure of cash will always attract the top players and managers and due to the Premierships global appeal isn't going to change anytime soon.
Not so sure the Premiership is the best league in the world but definitely the richest and most competitive.
Very disappointed in the manner of BR's departure however it would be churlish not to concede he did a great job at Celtic and grudgingly wish him and Leicester all the best.