The reason the field has been in bad shape is because the groundskeeper erroneously read the soil-to-grass conversion chart. He then discovered that the grass needed to maximize its noon focus for optimal sun absorption.
He read that a half-nitrogen, half-thyme mixture would build better roots and top growth, and is confident that these improved half-thyme adjustments will improve the overall performance of the grass.
If this doesn't work then the groundskeeper will summons Paul Bain to give the grass a swift kick in the *ss.