optilangI can't see anything wrong with - All/some employees of this company were recruited through an agent.
Yes, that's what I said so. The point is, if we take the past point of view and use "girlfriend", this sentence would need to be changed to "All applicants of this company were recruited through an agent.", which is not OK. Taking the past point of view would disrupt the reference for determining which people we are talking about.
How can you re-write the following sentence by NOT calling them "our employees" just because they were not yet employees before they were recruited by the company?
We recruited our employees through an agent.
I can't imagine how this is possible.