The Week That Was suggests that "the problem for Teg was that the whole field didn't go out at a suicidal pace in Brussels like they did in Zürich."
It seems to me that for about a decade or so it has been widely accepted that a serious problem for guys with PRs in the low 13s at GL meets was that the early and mid-race pace set by the rabbits for the 12:40-12:50 guys was TOO fast.
No longer true?