Entering Saturday’s action, Oakland first baseman Dan Johnson was batting .146 in 144 at bats dating back to August 31 – only one player in baseball, Pedro Feliz, was within 50 points of Johnson on that score in 150 or more plate appearances. Johnson rapped out three hits on Saturday before hanging another oh-fer on Sunday; it remains to be seen whether he can pull out of the slump in time to save his job. The A’s are patient, but there are limits even to their patience.