As
@BWilk55 states above, she knows Vic's system and Vic knows/trusts her. She is also one of the best PGs in the nation and with her teaming with Preston, #1, that will give Texas the best PG combo in the nation in my opinion.
I believe the emergence of Lee's season basically is what led Codio to leave since she moved further down the depth chart. Of the returning guards, she would have been the 4th of 5 to come off the bench, not counting our PGs.
As far as Boutilier, it would have been nice had she stayed just for the simple fact there aren't too many 6'9" ladies playing basketball. She needs to stay healthy and work on her speed and agility at the college level to be a good player.