Agreed (he did not play that well). Others are saying Terry was worse. When both of your (excellent) CBs have a bad day at the office, you should be looking elsewhere for defensive problems (midfield?). David and Terry were exposed to excellent forwarders, sometimes having to chase them down a corner (esp Luiz). I'm not too worried either, since these issues will be worked out soon. This is the time to improve on teamwork, especially with the arrival of new signings.