What is it, beyond our obvious bond in the Thoroughbred, that most vitally comprises the fabric of the Turf? It's a question answerable in too many ways, requiring definition of too many intangibles, to be easily condensed. But I think we'll get somewhere close if we ponder the retirement this week of Stan Hough, an old-school horseman of a type largely overwhelmed in the era of the super-trainer. And especially because his departure from the stage coincides with the removal of two key features of the scenery: Calder Race Course,...