No, you misinterpreted the message.
Garnett demands defense, he's a leader, no matter how much I dislike him, he can lead. Garnett made a team better defensively.
Howard is a joker. He's not a leader, he won't demand a team to step up. He's a good individual defender, but team captain material? Demanding better from his teammates? He's not known for that.
your opinion... they upgraded 2 of their position with a pretty good prospect in fields... they could always pick up old C like the 2 o'neals for chips with the bait of a possible ring.
Contender or Playoff team?
There's a difference. Contenders need to play defense. No defense, you can't win a championship.