Did anyone else note a visual similarity between Lou2 and Kia Nurse? The fact that they are about the same height and wear the same uniform number may account for this. And their games are somewhat similar, although I suspect that Lou has a long way to go to match Kia on defense.
On the "who starts" question between Caroline and Lou, I will go out on a limb and say that one of them will start, i.e., that Nika will remain as PG. Nika has shown too much improvement in her areas of weakness not to maintain her starting role. How can you ignore 11 assists against 3 turnovers?
However, with Ice's unavailability, I think Caroline in particular will see time at the "4" position. Since Amari does not appear to be ready for prime time, the rotation for the 4 and 5 positions is not deep (although it is high quality) -- just Dorka, Aaliyah, and Ayanna. Caroline is strong enough on the boards to be credible at that position, which is how she and Lou can be on the court together. I think that Aubrey will find her place as a backup "2" guard.