A number of teams have brought up their top prospects, but the Athletics aren't planning to do so anytime soon.
The Giants added catcher/first baseman Buster Posey recently and the Nationals will soon recall phenom Stephen Strasburg.
Oakland has outfielder Michael Taylor and first baseman Chris Carter at Triple-A Sacramento.
Taylor, who is batting .244 with two homers and 25 RBIs in 39 games, has been slowed by a calf injury.
A's Unlikely To Promote Top Prospects Soon