In my cover letter, how many faculty member should I list as people I want to work with? I am a grad student, graduating in the spring. In my application for postdocs, I include a cover letter that lists faculty members I want to work with. If there is one person that I am really interested in working with, should I just list that person? Or should I add another so that I sound open to working with other people too. More generally, if there isn't one specific person I am interested in, how many people should I list? How many is too many?
At least in mathematics, I would recommend something like:

"I am especially interested in working with X, as her research in Y overlaps with my interests in Z and W. I would also look forward to interacting with V and U, as their work is also related to my interests in T."

This might be different in fields where mentorship is less fluid (e.g., the laboratory sciences, if you would choose one faculty member's lab to work in).

Indeed, in my own postdoc, I learned a great deal from my formal mentor -- and I also learned a lot from his colleagues in his research group.