Hypothetical but as Spurs seem to be on the brink of what I personally think would be one of the best buys of the summer in Ajax's Davidson-Sanchez for £35m, who is an absolute beast and has the potential to be one of the best in the world.
Should we of gone for him over Lindelof? Not any mark against Lindelof at all, but Davidson-Sanchez looks a monster and everyone thought he was bound for a Spanish giant like Barca this summer. Top business by Spurs if they get him.
Apart from what IxI Ra said don't really know about the best buy. Even though I rate him don't think Spurs really need a new CB in the most.