On the right side of your picture, I think they should slide the first row to the back of the endzone and do a row of 3 mats, then a row of two, finally a row of 3 at about midfield. Then put in some more lower level seating around the 40 yard line on the left, and hang a curtain behind that at around the 30-35 yard line. Use the space behind the curtain for warm-up space and/or a fan congregating area. You could still have 40,000+ ticketed seats and a lot closer viewing.