To use hoopie's quote 'In other words, we can't afford any injuries or unavailability if we want to stay competitive.'
I don't disagree with this entirely, though we did finish 7th in Beijing with Bogut, and 7th in London without him.
Overall though, outside perhaps Spain and the USA, I don't think many teams could afford to lose their best player(s) to injury or unavailability, and continue to complete for top 5 finishes at international tournaments.
Personally, I don't think the Boomers have ever enjoyed depth like we have at the moment. There are a bunch of talented juniors from the past four years waiting for an opportunity to impress at senior level. Delly has already cracked a regular spot, whilst Hugh Greenwood has seen some regular action too. Then you've got guys like Ryan Broekoff, Brock Motum, Jason Cadee, Anthony Drmic, Mitch Creek, Igor Hadziomerovic, and most recently Dante Exum, Ben Simmons and Nick Duncan.
The key will be getting these guys to a level where they are ready to compete at senior level whilst we've still got a big stock of big men (Bogut, Baynes, Maric, Andersen, Jawai, Nevill, Schenscher, Khazzouh etc.) as for all the talented juniors we have coming through, there doesn't appear to be a lot of great big guys under 25, so this is an area we may struggle in the future.