(3/16/2009) The A's sent down right-hander Kevin Cameron, who had a 2.79 ERA in 48 games for the Padres in 2007. A non-roster invitee, Cameron allowed two earned runs in 3 2/3 innings this spring training. Also, Oakland optioned right-hander Ryan Webb and infielders Jeff Baisley and Eric Patterson to Triple-A Fresno on Monday and reassigned right-hander James J. Simmons and infielders Joe Dillon and Sean Doolittle.