Since there's quite a few ties with the coaching staff, I thought I'd throw out a few North Dakota State guys that might be considered.

 

All height/weight according to team site, so take them for whatever they're worth.

 

OT - Billy Turner 6'6 314lb.  Got some good reviews at the Senior Bowl.  FCS ADA OL of the year in 2013.

LB - Grant Olsen 6'0 228lb.  Player probably in the mold of a Russel Allen, try hard guy that doesn't necessarily have top level skills.  Had good Junior year with 148 tackles (97 assists 11.5 TFL), but didn't start senior season.  Special teams guy also.

RB - Sam Ojuri 6'0 212lb.  May not be as much of a pass catcher as would be ideal, but NDSU offense isn't much of a passing one (only game lost in the past 2 season was because of 2 pick-sixes).

CB - Marcus Williams 5'11 192lb.  About the same size as Gratz.  21 career INTs, 7 of which were returned for TDs.  Also has a 27.5 yard average on 44 kick returns.

---