It’s the first Tuesday of the month and a half-dozen women are gathered in discussion, their BlackBerrys muted, around a long table in a Miami conference room. On this particular day, Kim Stone, executive vice president and general manager of the American Airlines Arena, presents a plan for how she will draw more business to her facility. The women chime in offering suggestions based on their own efforts to lure customers during the recession. By the time Stone leaves, she has tweaked her strategy, adding a few elements, including the idea of packaging arena events with overnight hotel stays.