I suspect that Calgary will mix in runs by Roy Finch with Messam, especially after the success they had last week in diversifying their ground game. In the latter part of the season teams had been able to largely contain when Messam was doing nearly all the running and one reason the Argos won the 2012 Grey Cup was they were able to focus on one Stampeder RB, Jon Cornish. if the Argos can contain the Finch/Messam combination, i think they have an excellent chance despite Calgary's fine chance. And as Bleeds Double Blue (like me) says

Enjoy the game and go Argos.