When it comes to guidelines and archetypes, the corollary always comes up: "A good player plays by the "Book", a great player knows when to throw the "Book" away and still win." For those that play MMORPGs, you might know what I mean. Tanks tank and squishy Nukers nuke, but slowly so that the Tanks can keep aggro. RIght? Except for my buddy on a top raiding guild. He didn't need the uber casting gear for raids, he had to nuke slowly, so his raiding gear was about extra AC, Hit Points and Resists. Which meant when the primary Tank went down and the secondary didn't grab control right away, he'd unload his biggest nuke, the a series of stun spells to chain stun the mob. Yes, he died, but he gave the raid time and a chance to regain control instead of wiping.
So, the question is: What is "Style"?