It's more like a 2013-½ roster; incoming freshman libero/DS Cat McCoy (who won't arrive until fall semester) is not listed. Our other 2014 newcomer, middle blocker Mirta Baselovic, enrolled in January and is listed (though without a number). It's also possible we could see a departure or two before August.
Khat Bell has always been listed as MB/OH. She began her career as an OH. My recollection is that after a strong debut in the first match, she found little success playing outside, then became perhaps the most dominant player on the team after moving to the middle. There has long been speculation that she'll move back to the outside.
Relative to roster listings, game positions are rather, ahem, "fluid" throughout a season. Teams might or might not even list an "Opp" (or "RS"), even though someone has to play the position. The "Opp" might be on the roster as an "OH," "MB," or "Util." With the loss of Sha' Dare and the injuries to Nicole and Tiffany, Texas had no full-time "Opp" in 2013. When our 'Horns settled into a 5-1 they featured a three-middle rotation that had each middle playing two rotations at middle and one at RS. (Three middles times two rotations per middle gives the six required middle rotations; three middles times one rotation per middle plus three front row setter rotations gives the six required RS rotations.) From that perspective, any of Khat, Molly, or Chiaka could be capable of being a full-time Opp, though none are likely to be listed as such. We'll probably use an MB/OH and/or a Setter/OH for Opp in 2014.
I'll be very surprised to see our Setter/OH become a regular on the left side, and I'll be at least a bit surprised to see Khat become a regular on the left side...but that is possible if Tiffany proves to be especially strong as the Opp.
It will be another Jerritt Elliott team, so one thing we can count on is that lineups and roles will be very "fluid" for at least the first several weeks of the season.
BTW, I admire your enthusiasm looking forward to 2014. This squad has the potential to be truly exceptional, so it's hard to wait patiently for the season to get going.