The entire selection isn't off the NET. These metrics are used because the committee members don't have perfect knowledge of all 358 D1 teams, and need some sort of trusted reasonable numbers to compare teams, wins, resumes etc. The committee members have never seen the majority of D1 teams play in any given season, and have seen many of the teams they are considering for the tournament play once, if at all. The metrics are tools the committee uses, but at the end of the day people are making all the decisions on who is selected and where they are seeded.