Oh easy. If you took off jake, and kornys snaps and put in the worst imp DTs we've had the last 2 years you would have significantly better front play, pressure, sacks, hits disruption etc.
In the CFL, you don't need to have the highest sack total. But you NEED to cause disruption at least. You don't even need pressures and hits. If you can push the inside of the pocket back onto the lap of the QB within 3-4 seconds consistently, you force the qb to go from about to toss it to having to look down, avoid the disruption, find another spot, reset, look back down field, and try to find a target. OR, they have to try and throw over a mass of humanity (when cfl qbs are pretty short in general) and risk their arm on the follow through. Which still messes with mechanics a lot.
In the past, teams that ran 30 fronts understood this. They focused their down linemen on guys who could win a bull rush 1-on-1, or could shoot a gap with a swim move and loop into the pocket. People here would always be stunned when the bend but don't break argos managed to sack our qbs repeatedly in a game. And while it is not the fastest way to rush/pressure/sack, it is one of the hardest to defend and prevent disruption from in the CFL. Because every team is rolling 2-3 NI interior OL (most always 3, you usually see 2 on bad teams), the Canadian OL are much less adept at dealing with nose tackles, pass rushing 3ts, and 4ts. Those guys, often imports, are generally in the 275-300 lbs range but insanely powerful and surprisingly athletic. With diverse rush ability, and the ability to run tite fronts, twist etc that makes the assignment harder to plan for. Sure, if you get the double on the 4t with the tackle, it should be pretty easy. But the other side of that you have a 1on1, or you have a 1on1 with the nose. And the C, is most often filled by guys undersized and who aren't higher end picks.
How many Cs in the cfl today could lock up a prime stove 1on1 for most of the game? None imo.
For the level of pressure/disruption we get from our OL, we would be as well off taking thomas out and playing 1 less dl in general.