When Dave Goldberg and Bob Roback walked out of Yahoo Music last week, Vince Broady, VP of TV, games, and entertainment, assumed custodianship of the music group while a replacement for Goldberg and Roback was sought. That replacement was not long in coming, and he comes from inside: Ian Rogers, VP of product development for Yahoo Music, will now take over the group. (Is anyone who works at Yahoo not a vice president?) Unless we're misunderstanding, generally unremarked in this shift is that Rogers will henceforth report to Broady, and the music group will go permanently under Broady's wing. Dollars to donuts this shift was already underway before, and may in fact be the otherwise unrevealed reason for Goldberg and Roback's huffy departure.