So my class has this question, which is:
Probably it can be anyone (who/whom) is qualified, perhaps even Mr Capp.
(Found on page 112 in Grammar for Writing Workbook.)
I personally put who, because the way I'd phrase that into a sentence is like such:
He/She is qualified for the job.
However, my fellow students say because it's a product of a preposition it should be phrased like:
The one qualified for the job is him/her.
Any help would be useful.