You also need to take into account a few things here. First, yes, UCLA is having a less-than-stellar year, but their best player (Jasmine Dixon) was injured prior to the season, so she's redshirting this year. One of their other strongest players, Markel Walker, has also missed almost half of their games so far this year.
Also, who knows how smoothly the transition phase is going from one head coach to the other. Can't blame Caldwell for that.
One last thing, Sheila Boykin, the 27th best recruit (as rated per hoopgurlz) last year was recruited to play for Caldwell at UCLA, but chose to follow her to LSU instead. Though this might not even be worth mentioning, as I just looked at her stats, and she's not doing too much so far this year. meh.
Anyway, she did alright at UCLA while she was there. Only 5 losses last year (3 to Stanford, and one in the NCAA tourney). But I agree, I don't see her taking the reins at Tennessee any time soon.