That is basically what I am getting at although there is more to it.
If a new FO were given the choice between two bases, one with only a few routes but in the ideal location while the other has many more routes but is in a less favourable location, what do you do?
If the crews at the small bases fly only to 5 or 6 locations this would be a less valuable/varied training environment. If however the number of destinations from the base does not directly relate to the variation in routes that crew could expect to fly a more informed decision could be made.
Cheers
jtb