I'm clearly far more excited about Foster than you are. I find your concern over "leading the huddle" overstated. MIKE will lead the huddle. Foster projects to WILL. He isn't going to be asked to do anything but fly around make plays.
EDIT: if Bowman goes down again (god forbid) and they slide Foster inside, Smith takes over at WILL. Smith played his best years in this defense. He can lead the huddle.
In either case, the rookie has some solid mentors.
[ Edited by post_primitive on Apr 30, 2017 at 7:34 AM ]