Just try to get a decent requirement out of Marketing: it’s not possible.
About ten years ago the then marketing department decided they would find a graphic design firm to provide all of the files for the new GUI. This made us happy as we had no one in house that could create anything original graphics-wise. I had deliberately made the prototype screens as ugly as possible to emphasize we needed professional help (my bad.) They got bids, samples of artwork, etc… I said make sure they have experience with graphics for software. R&D was not consulted further. We were presented with our new partner. After going back and forth several times with the designer about what R&D needed changed, she asked, “what’s a pixel?” They had only ever done print work.