To the degree they are requirements, the work can be reassigned within the team and it will make no difference.
Not fulfilling requirements is a straight up HR performance matter.
An unwillingness to execute in conformance with culture is also an HR matter for cultural fit.
In both cases it is not a matter of good-enough. It is a matter of not-good-enough.
Situations where it is not these are what the article covers, e.g. when the important thing is someone performing as requested not as expertise indicates or when there are non-trivial opportunity costs to fulfilling the request.
Not fulfilling requirements is a straight up HR performance matter.
An unwillingness to execute in conformance with culture is also an HR matter for cultural fit.
In both cases it is not a matter of good-enough. It is a matter of not-good-enough.
Situations where it is not these are what the article covers, e.g. when the important thing is someone performing as requested not as expertise indicates or when there are non-trivial opportunity costs to fulfilling the request.