The Oakland A's and Texas Rangers are disagreeing over who's to blame for Monday night's altercation in the stands that led to the arrest of Rangers reliever Frank Francisco. Francisco threw a chair that hit a woman and broke her nose. A's vice president of stadium operations David Rinetti says a review of the ninth-inning fracas showed the fans' behavior wasn't over the line according to baseball's rules of conduct that are posted at every ballpark. Yet Rangers manager Buck Showalter was quick to point to previous problems the Rangers have had in the Oakland Coliseum. He claimed the Rangers had asked for more security in the area, but Rinetti said neither he nor his security staff had been approached with such a request.