https://sloanreview.mit.edu/article/firing-the-right-customers-is-good-business/ https://sloanreview.mit.edu/article/firing-the-right-custome... ...among many

https://sloanreview.mit.edu/article/firing-the-right-customers-is-good-business/ https://sloanreview.mit.edu/article/firing-the-right-custome... ...among many others. If you're too dependent upon them that you can't, that's a whole other problem, one that needs to be fixed anyway.