Since Amos is going to get paid 6-8 mil a year, I don't see him back. He has played well but isn't a playmaker, so that should not be hard to replace. Bush is the obvious choice and may do well, but keep this name in mind.
Clayton Geathers, 6.2 220 , had 87 tackles last year with 3 PDs and 1 forced fumble.
He was drafted by Pagano in Indy and will not command a big contract.