>> a desirable position difficult for a new graduate.
These generally are not positions that people compete for across the nation. Once in a particular airspace, controllers will generally stay in that airspace. An outsider unfamiliar with an airspace would be at significant disadvantage to any local.
> >> a desirable position difficult for a new graduate.
This is an interesting example of a mangled quote. It's a perfectly grammatical English string. But in the phrase "a desirable position difficult for a new graduate", what's difficult for a new graduate is the position. In the sentence you pulled the quote from, what's difficult for a new graduate is the getting, a word omitted from your quote.
Something similar has happened with "nullius in verba", which is purported to be a quote from Latin, but is actually a selection of unrelated words from a larger sentence in Latin.