"greater reliance on pilots picking up extra flying with White and Green Slips to save the operation."
I think he's missing the boat here......pilots pick up white slips and green slips because it is lucrative......never once has a pilot told me he is on a green slip to "save the operation". That may be a by-product but NOT the reason for the pick-up......seems to altruistic of a motive to me.
Not critiquing the letter in general......just a point of clarification re this one point