No, no. The reason I suggest face-to-face is because only face to face is good at conveying emotion. Everything else falls short in that respect, and because work has a lot of conflict involved, non f2f comms increase unnecessary conflict, slowing everything down, creating (!) personnel problems, etc. People arguing on Slack and email are an HR and management nightmare, they really are. Once you get someone to actually talk in person to them, and then get the parties to talk about the issue in person, things get magically resolved.