David Anderson strutted, swung his arms and high-fived every teammate in sight after catching a touchdown pass in the Houston Texans' preseason opener. Sure, the game didn't count. But Anderson doesn't know when he'll get the chance to celebrate like that again. The 5-foot-10, 194-pound receiver is fifth on the Texans' depth chart, behind All-Pro Andre Johnson, Kevin Walter, Andre Davis and Jacoby...