But couldn't you equally write "introducing the wrong male into a team can have disastrous effects to the overall performance of the team"? I would argue - as presently the only female in a small, close-knit, and highly effective DBA team - that the risk comes from personality match and not from gender per se. And I would argue that introducing a new person of either gender into an existing team has the potential to destabilize the team.

When my company interviews a new prospective team member, we absolutely pay attention to whether that person is a good fit both with the dynamics of the team which s/he will be joining and with the values and culture of our company. But this is so whether the candidate is male or female, and whether the dominant gender in the team is male or female. (We have both kinds of teams here).

Tammy