And Rondo has played most of those minutes with Bass. Who's at "fault" for it? Its hard to tell without doing a heck of a lot more analysis.
Which is why +/- in its raw form isn't very useful. It's very noisy and subject to wide swings even when a player's overall quality of play hasn't changed but his team's or teammates have.
Bass is -79 as a starter
Bass is -46 as a bench player
While I agree, +/- is a foolish way to use as a black and white evaluation tool, it's unquestionably a good indicator as long as the team isn't filled with junk around them.
It's not a coincidence that KG is always at the top of the +/- for our team.
It's not a coincidence Rondo was second in +/- last year
It's not a coincidence Pierce is consistently top 3 in +/- for us.
Again, we're not talking about a small drop. We're talking about a massive disaprity. We're talking a triple digit positive number dropping to a double digit negative number. His +/- has dropped over TWO HUNDRED AND FIFTY POINTS.
That is completely absurd and completely inexcusable.