I've done some work adjacent to this. Not this project, not with microsoft. By internal network size they probably mean people you have a lot of traffic with in

I've done some work adjacent to this. Not this project, not with microsoft. By internal network size they probably mean people you have a lot of traffic with in meetings and emails. Presuming they're competent they probably only look at interactions with small groups or 1:1. By collaboration they just mean meetings with coworkers. Without having read in detail, its likely just drawing correlations between communication metrics and survey results. Lots of companies are paralyzed big their meeting culture. It's not really a surprise to anyone. But the data can paint it a bit more clearly if people don't know quite how to articulate the problem. It's pretty much always the same in a large org.