One thing I didn't like about XI's approach to showing how the crew came together, was how they all got there by accident. McCoy is promoted when the CMO dies. Sulu takes over from a guy who is ill. Uhura replaces the linguist because she speaks Romulan. Too much coincidence for my liking.
Wouldn't it be a bigger coincedence if they all were in their usual spots from the start?
The thing is, in TOS, they
weren't in their usual spots from the start. McCoy and Uhuru came on board after the events of WNMHGB, Sulu wasn't the ship's helmsman and Spock wasn't yet Kirk's XO (at least, without consulting my tape of the ep, I don't think he was).
The point is, these characters went to the Academy at different times and had career advancements before they all ended up on the Enterprise for the 5YM. The way it was done in the JJ-verse seems a bit contrived and forced. I still say that the entire thing was an alternate universe from the start, even before Nero arrived to cause changes in the timeline. Just my own theory, but it works for me.