I've also noticed Erin O'Hearn returning as of late and subbing - she was in for Nydia this past Sunday morning, and was on for Matt today. Glad to see her back!
I really don't understand the purpose of Sharrie Williams - they refer to her as "Action News anchor" but she has yet to anchor anything. And, this might be weird to say, but I'm kind of getting tired of her random reports. Why is she doing them? Sometimes she does 2 in the 5 pm newscast. I also saw her on the 11 a few times I think. She just gives an in-depth report on something. Usually things we pre-packged video - not even live interview shots. AND, even though she's called "anchor", they don't mention her as an anchor at the end of the show.
I don't get annoyed by Lisa Thomas-Laury's random reports, because a.) she's LTL, and b.) they are usually cutesy, fluff stories that involved her going somewhere/doing something. Sharrie just puts together video clips and writes a script. Not really sure!
I like Sarah & Walter together, as random as it may seem.