No inside info, but I think Russell might realize how underutilized she is and how she isn't blossoming into a star even though all of the tools are there. Team chemistry doesn't seem to be strong, Tennessee's guards take the vast bulk of the shots despite having two former top 5 kids in the post, etc. Russell would only have 1 more year before she is eligible to go pro so she might just stick it out and then jump, but she's not close to the player she could be with better coaching.
Deshields just isn't fitting in at UT, she is visibly frustrated when she plays, high turnovers, poor shot selection, poor numbers overall and the team is significantly under performing. I don't get the vibe that she is loving her playing experience thus far, and for a player with her skills and athletic ability she should be doing a lot better.
Same issues at Duke regarding Greenwell/Chidom. Really poor team results and neither player is developing into a top ten kid. Duke is a top rate university so I wouldn't be surprised to see them stick around to get the degree That will ultimately help them more than basketball ever will, but when teams with tons of talent are borderline NCAA teams, I think it's safe to assume there might be some chemistry issues in the locker room.