The following was interesting to me. I wonder how many of the crew were replaced? Another factor was that this was an untrained crew?
Indianapolis was then sent to Guam where a number of the crew who had completed their tours of duty were replaced by other sailors. Leaving Guam on 28 July, she began sailing toward Leyte for training.
The torpedoes hit the forward part of the ship, and she went ahead full speed, essentially "scooping" water into the hull, hastening her sinking. However, it's not clear if there was a "right" decision to make. To go to dead stop makes you a sitting duck for the coup de grace.