I love the Library>People function which makes our lives a lot easier.
It does a great job most of the time but I often have to review or rename incorrect suggestions. It is a lot faster to drag and drop the image or a multi section of image to the correct person in the "named people" Pane vice retyping the name.
The biggest issue is that on a long list unnamed people (when scrolling is required), the Named People pane disappear making it difficult to rapidly drag and drop and also brakes the flow of the list.
Suggestion: In the People window, we should have the ability to pin the "named people" pane so it remain visible when the Unnamed People is scrolled down or up. This would afford the quick drag and drop capability from the unnamed people to the named people pane.