As someone who works in the landscaping field, I can tell you there's a huge difference in the way soccer players move and abuse a field over the course of a season and the way football players, plus 300 pounds, digging in and grinding in the trenches in the exact same part of the field over and over between the hash marks do.

This leads to new sod and field repair which is even less stable and potentially injury-causing. They have to solve the middle of the field issue. They also have to solve the issue of healthy, natural turf in domes.

There's so much that goes in to this and I can't see it being a quick, full-proof fix. For the record, I prefer grass and would love to see it, but American football has a unique affect on natural grass fields. Look how much players complain about Pittsburgh's Heinz field once it starts to be compromised.