Pre-season thoughts of European qualification are already beginning to look bafflingly optimistic for Roberto De Zerbi’s team Sign up for our free newsletter here In March, Tottenham, fearing possible relegation, spent big to bring in Roberto De Zerbi, who will probably never go into a negotiation with a stronger hand. There was obvious improvement and they stayed up on the final day of the season. Since then, Spurs have spent a net £175m ($234m) on improving the squad. The message seemed clear…