One of the biggest differences between being a manager now and when I started out 33 years ago is the amount of data used by football clubs. So much of the modern game is driven by it and not just in the recruitment of players - it's also used for looking after them, in the medical and sports science departments too. It has led to some amazing innovations since I began my time in the dugout at Bournemouth in 1992 - the same year the Premier League era began - but I would argue there are many