I think the Hawks success is rubbing off onto the C's. With Stevens probably pointing it out 10 times a day they are believing that if you work your ass off and play like a team you have a shot at winning.
Thing is, people are talking about Atlanta as if it's the first time something like this has happened.
Look at the Spurs - they beat Miami for the title last year, and have been legit contenders year by year for ages now. Those guys haven't had a legit superstar since about 6 years ago - their two best players (Duncan and Parker) are reduced to being borderline All-Stars at this point, and are nowhere near superstar level.
Same can be said for the infamous Pistons of a few years back - between Hamilton, Billups and Wallace that team had a bunch of borderline All-Stars but also no superstar to speak of.
A guy like Isaiah Thomas is at least as good a player production-wise as anybody on those three teams (championship Pistons, 2013-14 Spurs, today's Hawks).
I think that at the end of the day, the one huge underrated factor is defence. The one thing that I can think of that every single championship team (who didn't have a clear superstar) has is very good team defence. On offense you'll have good and bad nights, but Defence is the one thing that you can do at a high level every single night. It's the one thing you have control over.
I think the one thing we all should have learned from the Big-3 era is that when you play Grade-A defence you can compete with anybody.
Since we traded out Rondo and Green and started Smart+Bass the one thing that's improved dramatically is defence, and it's that (not firepower) that's led us on this great run lately.
As long as Boston continues to play great defence, they give themselves a fighting chance.