Since WordPress SEO has both Title Template & Breadcrumb functionality, how about a Title Template that utilizes the Breadcrumbs?
I work extensively with sites that are mostly page hierarchical. For those, it makes sense that the page Title tags follow the page hierarchy.
e.g., in reverse order (inner to outer)
Heated Tube Facility | Facilities | Chemical Propulsion
or, in case that's not clear:
Red Delicious | Apples | Fruits | Food
In some cases, this would save time, rather than having to add SEO titles, the deeper we go (normally only 3 or four levels deep).
Comment welcome. This plug-in is an amazing time-saver.