I've been trying to watch something they don't normally show much on tv here in Europe: doubles. Today I saw a pic where the ball is hit to the player and his doubles partner, standing at the net, turns back, tracking the ball hit to his partner. Back in the day I was taught not to do that. The primary reason being that you would lose track of what's going on at the other side of the net. Albeit, for a fraction of a second. As the opposing (net-)player that’s all the time I would need to scoot over, intersect the ball hit and volley the ball right between the net-player’s feet. Your thoughts?