ORCHARD PARK, N.Y. — Difficult as it was for Frank Reich to open the week being reminded of how Indianapolis fell short in its most recent trip to Buffalo, the Colts coach also found reason for optimism. “I’m not going to lie. It was painful to watch that game on tape again … but yet it was also encouraging,” Reich said, referring to a 27-24 loss to the Bills in an AFC wild-card playoff in January.  What also stood was how the Colts were one of any several plays away from a chance at victory. The potential turning points included