Getty If he keeps improving, the San Francisco Giants will soon have to call up top prospect Bryce Eldridge. It was notable when, at the end of spring training, the San Francisco Giants decided that top prospect Bryce Eldridge would start the season in the minor leagues. Judging by his early-season performances in Triple-A Sacramento, Eldridge won’t be there for long. In fact, Eldridge’s early-season success in Triple-A is such that, barring a significant cooldown, the Giants will have no