If I wanted to watch overmatched teams lose over and over again I'd watch the NCAA more regularly.
Your comments don't add up then. You just said you enjoying watching the Celtics and they have been overmatched for years. At least be consistent.
If by "years" you mean the Brad Stevens era, then sure, even though we're not all the way through a second season yet.
The Celtics never finished under .500 when Doc Rivers was the head coach, and they always had enough talent on the roster to have a shot (even an outside shot) at winning any given playoff series. That has not been true since Stevens was hired, and was cemented when we traded Rondo and Jeff Green -- who are, inarguably, the two most talented players to have played for the Celtics this year. Those two players have the potential to be the best player on the floor in any given playoff series. No one on our team has a similar ceiling right now.
There's a reason why everyone with an ounce of basketball intellect is looking at our team right now and saying things like (to paraphrase) "there might be some guys who could play well enough to maybe earn a spot on a championship roster." And it's not because they're plucky young upstarts with a bright future: it's because, as far as the requisite level of NBA talent needed to win a ring, they're decidedly lacking.