Just saw that the CFL.ca's Justin Dunk @jdunk12 that the Cats first overall pick in the 2013 draft Linden Gaydosh just signed with the Ticats. Gaydosh is a defensive tackle and spent time with the Carolina Panthers (mostly injured).
The Cats already (quite unusually in the CFL) play two Canadian in the defensive tackle position with Brian Bulcke and Ted Laurent. So obviously the Cats can spell them off, but it is a bit of a logjam, but probably won't matter much this year. It does give good depth if either of Bulcke or Laurent get injured though.