Are Celtics sneaky good?

Boston greatly improved its roster quietly and efficiently

Updated: September 25, 2012, 1:36 PM ET
By David Thorpe | ESPN Insider
Garnett/Rondo/Pierce Rafael Suanes/US PresswireRajon Rondo, Kevin Garnett and Paul Pierce should get more rest with the depth on their roster.

Most of the talk this offseason has centered on the Los Angeles Lakers, Oklahoma City Thunder and Miami Heat. Even the Philadelphia 76ers have drawn some interest with the addition of Andrew Bynum. Big trades and free-agent acquisitions will do that.

However, the Boston Celtics did neither (save for re-signing Kevin Garnett) and very quietly have had a tremendous offseason. With some good fortune this season, they could be just the team to break Miami's stranglehold on the Eastern Conference crown.