I'd love to see more of Harriet, shes a brilliant actress and given the right storyline development could be a brilliant character. Being Ashley's second, unloved wife and carer being bossed around by Laurel is a complete waste of a good character.
Bob's character has diminished to nothing since he's been with Brenda. He needs to get back behind the bar of the Woolpack and get his quirky spark back.
I'm glad they dropped the Bob/Harriet spark though, Harriet has more morals and dignity than to carry on with a married man and i could never put up with Brenda and her victim complex for months (she was a nightmare during Bob and Val's forgery scam reveal).