McDonald's gave up on winning the 2 biggest battles in fast food — and business is exploding (MCD)

McDonald's is de-emphasizing speed and value as the chain evolves.  Typically, quick service and dirt-cheap prices are fast-food chains' biggest weapons.  McDonald's sales have been soaring recently.    McDonald's has changed its priorities — and it's paying off for the fast-food chain.  For a long time, the end-all, be-all in the fast-food industry was a race to the bottom on value and speed. If menu items got too pricey, customers stopped showing up. Same for speed — there's a...