For the odd person who may not know it, it is a very clever piece on how the Pope's Account Man may have briefed Michelangelo on the painting of the Sistine Chapel ceiling. You can see it here, on John Griffiths' website. As an aside, note the "best" briefing isn't a snappy single-minded proposition. It's more a brand story. Or something.
But twenty years later, we have the case history. Very funny. Very cleverly done and full of all those ghastly cliches that tumble out of our mouths so easily: "messaging included..." "traffic increased by..."
Do have a look.