I have a problem with Shaw's "Picard is now retired admiral". How Picard can be retired, when he's doing active duty for Starfleet heading it's Academy? Isn't he The Chancellor of Star Fleet Academy? That's means he's is Starfleet personnel with current rank of an admiral. So he can not be retired in season 3 as he was in season 1.
We don't know that he was still Chancellor of the Academy. Doesn't seem so since he was in the process of moving from Earth.