Bergen: 'End of the beginning' of ISIS?

In The News Piece in CNN.com
Nov. 13, 2015

In a speech in 1942, Winston Churchill said that a recent British victory against the Nazis in North Africa was "not even the beginning of the end, but it is, perhaps, the end of the beginning."

Might the coalition arrayed against ISIS also be at the end of the beginning of the campaign that eventually will destroy the organization?