Traditionally (at least I've first heard these phrases in a business context) "best practice" describes what very successful businesses do and "common practice"

Traditionally (at least I've first heard these phrases in a business context) "best practice" describes what very successful businesses do and "common practice" describes what the average business does. I ignore this distinction and have just replaced "best practice" with "common practice" since I pretty much always want to say something along the lines of "this is how a lot of people do it, there's good reasons for it (list of reasons) but everything depends on context so critically reflect if it makes sense to follow these practices or not on an individual basis"