Although the infield defensive positioning mainly appears to be really solid, there have been some strange positioning decisions in the outfield recently. While the shallow positioning of Cordero during Pivetta's start last week drew some fire, I thought the positioning of Martinez during yesterday's start against the Mariners really peculiar. The back-to-back doubles by the Mariners to start the game off were both seeing eye ground balls between third and short. Both were hit by right-handed batters off the lefty E-Rod, but in each case, J.D. was positioned in really deep left-center, about two steps in from the warning track in front of the left edge of the F.W. Webb sign. I assume that the Sox, like most teams, have the bench coach responsible for defensive positioning based on analytical research, but in both the Cordero and Martinez positioning blunders seemed to be really risky decisions since Cordero doesn't appear to be very good on balls hit over his head and J.D. lacks the foot speed to cover the distance to have prevented those ground balls from turning into doubles. What am I missing here? Are the Sox failing to allow for the individual strengths and weaknesses of the outfield rotation du jours?