I want to know the answer to the following question:
During what period did soft AC stations attempt to reinvent themselves?
All the background I'm provided with is that "The "soft" AC format has reinvented in the late 2000s/early 2010s as a result of its declining relevance, adopting a more upmarket, middle-of-the-road approach, with a selection of "oldies" (usually from the 1960s/70s onwards), primarily rock, jazz, R&B and pop music.". Is that enough to answer the question?
Answer: yes