Ferrari v. Renault

"You need five factors in place to have any chance of winning a grand prix, let alone a world championship. ... These factors are the team, the driver, the engine, the chassis and the tyres. ... Renault started the season with all five elements in place, whereas Ferrari had one, or more, missing. And you can assume that Schumacher was not one of those. Gradually all five factors have come together and there's little to choose between the two"

Quote from Gordon Murray - Motorsport.