Well this is complicated , all past champions were essentially deep teams.
The best thing to do in the nba is get your top players in place than have the proper depth behind them , think 2011 heat , the top was awesome but they didn't win a championship until role players started to contribute (battier , chalmers , haslem , miller) , also think 2011 mavs , the top was so thin (only nowitzki actually) and they had all kind of depth wich won them the title . Think every championship team and role players played a large part in their runs . The one pointing to 08 remember no championship without : rondo perkins(role players in 08) posey house brown ...
I think the best moves done this season are the ones made by the celtics and the heat . They added the best role players to compliment their systems .
When it comes to the celtics having 8 players who can score 15+ in any game with 5 of them capable of going 25+ on any given game , with the ball movement on this team , u can really burn your opponents defenses.
Imho the lakers lack of depth will show in the playoffs . Both ways can win you championships if they are done correctly.
Ps : sorry for the english and sorry if I draged ...