Well that's already been happening. This is who Kennedy has hired since Trevorrow has fired
JJ Abrams (again)
Rian Johnson (again)
Benioff and Weiss
Jon Faverau (tv show)
James Mangold (rumoured)
Stephen Daldry (rumoured)
Not to mention the directors she brought in back for reshoots were Tony Gilroy and Ron Howard. Don't expect another "Lord and Miller" left field type pick for Star Wars in the near future which is a shame IMO.