Well, what is the secret to longetivity then? Delivering top-notch work or having the "right" connections? I feel like some girls on the MDC list are there purely because they have caught the eye of some very important people, but are not necessarily great models.
part of getting longevity are long term contracts for brands/beauty products
like Natalia for Guerlain, Daria for Lancome, Carmen for Michael Kors
and ledt not fprget support from high fashion names and editors, and of course the designers and photographers.
lets take for example, Carolini Trentini who these days aren't doing that much but since she is US Vogue regular and still has Anna Wintour's support and had a shot with Meisel for a Campaign sharing with Karlie. she is back on the list ?
Designers support can weigh in like Karl Lagerfeld with Freja, Riccardo Tisci with MariaCarla or Natalia's very special relationship with Valentino
and also photographers, I don't think Meisell has a favorite model though he's too fickle, the moment he uses them, discards them and some are taken back but Mario Testino has from close relationship with Kate Moss and with other models like Claudia Schiffer, Natalia Vodianova and Eva Herzigova.
I checked all the lists and these are imo, havent being doing any campaigns other editorial works:
No. 49 Jana Knauerova = after a steallar s/s11 season. a one hit wonder
No. 43 Carola Remer = new ? does she have any big blue chip campaigns coming ?
No. 32 Eliza Cummings -

she's still in the list ?
No. 30 Hananh Holman and No.27 Numue Smit - I don't know much about them
but I haven't seen any work from these models at all
No. 25 Mirte Maas - the definition of a model of overreliant on Meisel, once Meisel is done , that's the end of the shelf life.