Maybe they look at Caroline as someone more relatable for the host of a show like this...? I know I'd feel much more at ease with her than I would with some flawless model-type... I dunno - just a thought....
I wouldn't say Caroline is the next Jeff Probst, however, she doesn't offend me....but I did notice the boobs hanging out, guys usually don't notice such things ...my take on it~~ dress her better~~she's fine!
Truth to tell...I really haven't been paying all that much attention to Caroline Rhea. She's okay, but really, she's not 'on screen' for the majority of the show anyway (maybe 10 minutes at the MOST per hour episode would be my guess).
The producers probably felt that they needed to get someone who would come across as non-judgemental and a bit on the 'nurturing' side, a non-intimidating host...KWIM?