I would very strongly disagree with your bolded.
We have many young high quality centres and centre prospects (Horvat, Petey, Gaudette, Madden, Focht). We have lots of young D but the quality is not anywhere close to what our centre quality is. We only have Hughes that is young and high quality. OJ could still get there and we have Rathbone who is looking ok along with Woo).
The centre position on the big team is a strong point for us now and moving forward. Quality top 4 young D just isn't as strong.