Here is an interview with new Asst Coach Jessica Keller on Sports Nighty; about 10 minutes (starting about the 1:22:30 mark through about 1:32:00).
The hosts indicated Coach Amy Williams was looking particularly for a good 'cultural' fit with the team, program and coaches. I think they've fit the bill in that regard. The Interview didn't discuss specific duties or delineation of responsibilities, though it may be a little too soon yet, as practice is just starting, and all the players have not returned to Lincoln yet. I get the feeling responsibilities are something of a work in progress. As @Redhacsaid it would be nice to know more regarding coaching assignments; but, I'm not sure we'll ever know much more than what we already do.
https://huskers.com/watch/?Archive=7462&type=Archive