As I mentioned earlier, Grant wrote twin pieces today for ComcastSportsNet. In each he named the one irreplaceable player on the A’s and Giants. (See the Giants piece in a former post.) Here is his piece on the five most important A’s leading to his conclusion of the one player they absolutely cannot lose. This was a tricky assignment as the A’s don’t really seem interested in winning their division and they trade away all their good players. Nonetheless. To read Grant’s article, please click here.