It could certainly be argued that Texas’ big cities are a ragtag band of siblings. Impeccably groomed, the eldest is an investment banker. While the middle child toils in the sun on an offshore oil rig, the youngest holds court at the local coffeehouse, extolling the virtues of flash poetry. But when push comes to shove, they all unite under one banner with a lone star. These competitive brothers and sisters know what’s good for any one of them, is good for the group. In this spirit of communion,…