The Oilers didn't invent scorched earth rebuilding, they just tainted it by being wholly incompetent. But the real difference is, the Oilers sat on all their picks and thought they could rebuild entirely through the draft and only the draft. The Sabres on the other hand, are doing things the right way - by flipping the many picks and prospects they've acquired for good young players that will help now instead of maybe years down the road.
Honestly, the Oilers rebuild is not a valid comparison anymore. It's an extreme that won't be matched by any other organization for a long time.