I think the Broncos keep 5

1) Von Miller (counts as a DE too)
2) Nate Irving
3) Danny Trevathan

Lamin Barrow
Larentee McCray
Jamar Chaney
Shaquil Barrett
LJ Fort
Jerrell Harris
Brandon Marshall
Chase Vaughn
Cory Nelson

I think Barrow makes the 4th spot - big competition between Marshall, McCray, Barrett and Nelson for the 5th spot.

Nelson has a Special team edge (maybe Bruton's replacement) - all the rest can be on the PS. McCray seem to have the edge for the last spot on the LBs. I think Barrett can be developed into a MLB - or another strong side guy.