Sorry, but you're wrong. We got all of those players through the draft. Roy and Aldridge were the result of picks we exchanged with other teams, but we still got them through the draft. Oden also came through the draft, and it doesn't matter that we lucked into him. Luck is always part of the draft. We only got "lucky" because we were one of the teams that didn't make the playoffs that year, so we were a crappy team that paid its dues.
My original point still stands. We built this current team through the draft--and not through big free-agent signings.