Stats are obviously important, but not all of them are created equal and are often in fact skewed or downright inaccurate when digging through the game tape. The stats are helpful tools to augment the analysis of what is happening in front of your eyes. But it only tells part of the story.
Any stat that is telling you that ET is anything other than our best wing defender is obviously not telling a fully accurate story. I realize he is not defensively Iguodala at the SF position. But he's a real nice defensive tool....obviously better than our other high minute wings. Every night he's defending the opposition's best wing....regardless if they are SF or SG. That combined with the small sample size will skew things. Also depending on the defensive stat...or the site it comes from....the stat might be based purely on listed starting position as opposed to what actually happens in the game....which can be very inaccurate.