Is Fenway really an option? Sure, the soccer team will probably only play every other week at home, and they could work around the Sox schedule, but would they do a NYCFC-at-Yankee-Stadium type of setup with temporary grass on the infield and a flattened pitchers mound? Or push the sidelines even further away from the main 1B-RF grandstand? The baseball "purists" would howl. and it's not so good for soccer either.