Most likely it was Amherst in, and Williams out. Norwich was 1-0 against Amherst, and 0-0 against Williams. Trinity was 1-1 against Williams and 0-2 against Amherst. The fact that the number of ranked teams has been reduced and "once ranked, always ranked" has been deleted means that RNK can dramatically change from week to week based on a small, but ever changing sample. It is worse to have a team you have beaten go from ranked to unranked only to be replaced by a team that has beaten you than to lose to a ranked team under the old system. I don't think anybody gets that.
One other point, Norwich's L25 was 5-1-1 not the 4-2-1 that Emery tweeted. Norwich's last 7 games were
CST (T), SKD(W), BAB (W), UMB (W), SKD (W), CSC (W), BAB(L)
The reg season game before CST was a loss, but the loss to BAB replaced it in the last 7.