You say that probably because many components in it look like common sense.
“Duh, of course the response to a problem should be to rectify it” (simplifying slightly)
Lots of companies don’t though. Or they jump to a conclusion about the best solution. Or some middle manager decides he knows what’s best and then proceeds to break things.
It’s quite useful to have a philosophy that gives authority to non-traditional but logical steps.
How can you say Six Sigma is bullshit?
It’s literally just a method of identifying a problem, measuring and analyzing its impact, and implementing a lasting solution.
The difference between the six sigma method and traditional organizations is that: