I think you are confusing my language. In our defense, we have a DT and NT. Im talking about ONLY the DT position, not the NT position. Right now, we have Holliday, Wright, Shaw, Zgonina and Vickerson as true DTs. Traylor and Chester are the only two guys that really have the size to play NT but Zgonina is listed as a backup there and same with Vickerson.
Corey Simon would be a DT, not a NT, and therefore be playing one position on our Dline, the DT position, along with Holliday, Vickerson, and Wright. Therefore we would have 4 guys who are DT's on our team when you really need 2-3. Who would be the odd man out?
For the FUTURE of the team, not carrying Vickerson or Wright would hurt us. However for this year, Simon would be a good upgrade.