grass species for greens vs. fairways vs. football fields are different, and they require different preparation, treatment, care, repair and growing times.
zoysia is ok for the sg stadium, but i would recommend
bermudagrass.
http://www.sportsgrass.com/info/selectspecies.html
please give the well paid pappy some slack as he may have the last laugh with his fat pay. devil's in the details. for example, the brand new field at the newly built levi's stadium in santa clara had to be thoroughly gutted and replaced as expensive executives picked the wrong grass and had the field sodded loosely to meet start date. millions of $ wasted. the problem with using patches of sod to cover the field is that contact with bare soil is loose at least for a year. roots from sod will require around 2 years to penetrate into bare soil. the field may look covered with grass for football (american football is worse than soccer in terms of wear and tear on field) but patches of sod can come off with these very heavy but fast football players. ultimately, it's better to grow the grass on the field on the bare soil than placing mosaic of sods over it.
http://www.thestate.com/2014/08/21/3632113/loose-sod-at-new-levis-stadium.html
please be nice to our esteemed and very well informed pappies. thank you.