The NFLPA 2019 Collegiate Bowl is one of the first post season pre-draft game for the best players in college to perform before NFL teams and their scouts, etc. The game will be held at the Rose Bowl on January 19th at 2:00 PM.
The coaches will be Mike Tice for the National team and Chuck Pagano for the American team. The rest of the staff on both sides is filled with some ex NFL players too.
http://collegiate.nflpa.com/2018/12/04/full-coaching-staff-announced-for-2019-nflpa-collegiate-bowl/
The rosters are pretty much set but there could be some late modifications.