On stage 13 you have a long flat section between the penultimate and last climb, and the climb to Crans is not that hard. If someone doesn't up the pace significantly already on Coeur, I'm not very convinced that we'll have big gaps that day. Coeur - Crans isn't exactly Finestre-Sestriere or Mortirolo-Aprica.19 isn't the queen stage. That's 13.
Stage 19 is very similar to stage 15? from 2007. Selection down to about 6 riders on the Giau, then little difference on the rest of the stage