  The "d-wave" symmetry of the superconducting order in the cuprate high
temperature superconductors is a well established fact, and one which
identifies them as "unconventional." However, in macroscopic contexts --
including many potential applications ({\it i.e.} superconducting "wires") --
the material is a composite of randomly oriented superconducting grains in a
metallic matrix, in which Josephson coupling between grains mediates the onset
of long-range phase coherence. Here, we analyze the physics at length scales
large compared to the size of such grains, and in particular the macroscopic
character of the long-range order that emerges. While XY-glass order and
macroscopic d-wave superconductivity may be possible, we show that under many
circumstances -- especially when the d-wave superconducting grains are embedded
in a metallic matrix -- the most likely order has global s-wave symmetry.
