Beef short ribs hot off the smoker. (Photo ©Chris Wilkins/Texas BBQ Posse) A recent Sunday in DFW offered the combination of perfect weather, the start of the NFL season and an interesting package of meats from Texas Beefhouse. So, what a better way to spend the day than smoking beef short ribs and tri-tip steak? After another hot Texas summer, a cold front brought a cloudy 70-degree day to Posse member Darrell Byers’ backyard test kitchen. Darrell grabbed the flatscreen TV from his catering rig and set it up on the patio. With the addition of a couple of cold…