JBJr has NEVER been committed to defense. I've seen the kid play since 8th grade and very little has changed in his defensive approach.
Yet, somehow, you really think he was gonna all of a sudden gonna flip a switch and be a great defender? Or you think OG and Juwan - who led the defensive improvement - would have gotten the same amount of court time had JBJr not been hurt?
BTW - congrats on your daughter. Saw her at the graduation yesterday when the kids got their diplomas (top 10 w/ red mortarboard going to IU) and you and you wife should be proud.