In L.A., you'd get bigger crowds for a futbol game than for a football game.
The problem with the NFL in Los Angeles is that City officials are obsessed with having any NFL team play at the Coliseum, which is in the middle of a horrible and crime-ridden area. They want to spend hundreds of millions refurbishing this money pit.
Peter O'Malley had proposed years ago building a football stadium right next to Dodger Stadium - 100% privately financed. City officials torpedoed this deal because of their Coliseum obsession.