We gave all the New York to Paris flights to Air France.
It doesn't take a crystal ball to see what's going to happen with this deal.

This is just a continuation of the Australia thing.
Delta heavy jets are being phased out.

Its not really about pilot costs though. That's only a minor factor.
Its about generating revenue without having to make capital investments.
Delta wants to be a virtual airline to the extent possible. Selling airline tickets without actually having to buy airplanes is very profitable.