It was not just the inventiveness and precision of the football, but the glowing tribute afterwards of Sir Tom Finney, declaring it the best performance he had been privileged to witness. This glowing testimony of an esteemed elder statesman was embraced even more than if had it been Bill Shankly himself. What was thrilling about the obliteration of Arsenal on Saturday was it summoned memories of that Forest game 26 years ago: peerless, football perfection of the Anfield kind. It was incisive, destructive and relentless.