LSU missed opportunities big and small Saturday night on its way to a fourth straight loss in College Station with a nightmare second half against Texas A&M. The No. 8 Tigers (6-2, 3-1) watched a double-digit lead in the third quarter quickly evaporate into a double-digit deficit with their own miscues helping fuel the No. 14 Aggies (7-1, 5-0) in their 38-23 comeback victory. Here’s a look at five of the most impactful plays in the disappointing swing. Opening the doorPlenty of game remained, but LSU was clearly in the driver’s seat with a 17-7 lead against an opponent with a reeling quarterba…