By the way, could someone post the Big Four's averages for the last few years? I suspect that, despite the brutal condensed schedule (which will lighten up next year), none of the four have experienced a significant decline in terms of efficiency/productivity.
I just briefly looked at the stats for the past three years for Rondo, Allen, KG, and Pierce.
From what I see, none of the four have experienced any notable decline in production. Pierce's shooting percentage is down several points this year, but his assists are up. Ray is having a
career year from 3-point range. KG is still putting up the same numbers. Rondo is too.
If the rationale for blowing things up is that the Big Four are on a decline, it's a false one.
The core is still worth retaining. Find a legitimate starting big and scoring punch off the bench, and the team makes another run next year. In the meantime, continue to stockpile assets (future cap flexibility, draft picks, developing young players) for the day when the right opportunity to cash them in presents itself.