Just boggles the mind...
Atlanta has like 3 NBA players on their roster. Lou Williams, Paul Millsap and Al Horford. Rondo, Green and Bass are better than those three. But Atlanta is somehow a lock for the playoffs and Boston is not.
Is there some kind of disease going around that causes this mass delusion?
No, Atlanta doesn't have 3 players on their roster. They are more or less keeping the same-ish squad. That's with Jeff Teague, Kyle Korver, and Harris. They are above the Celtics because they were a 4-5 seed last year with Josh Smith. Paul Millsap isn't that far off from Smith, and some may even say he's a much better fit. Meanwhile, Horford gets to be the go-to guy - the super talented, coveted center that people were saying the Hawks wouldn't trade for Rondo + assets.
Your take that Rondo, Green, and Bass over Lou, Millsap, and Horford is also incredibly debatable. There's much more value in a dominant center than a dominant point guard.