It turns out they reserve the "smaller" projects for the Mosaic Select series. I guess the Herbie Nichols Blue Note or Stan Getz Roost boxes would appear as MS these days.
Maybe we should post our ideas for more MS sets:
The Clare Fischer Pacific Jazz Sessions - a mixed bag with trios, orchestra, latin jazz, but all worth hearing
The Jeremy Steig Solid State/Blue Note/Capitol sessions
Anything else?