Fearful Grey Cup predictions

As a Saskatchewan Roughriders fan, I am both wildly excited and deeply nervous about the Grey Cup game on Sunday. Last season, you'll recall, the Riders lost the CFL title game 28-27 to the Montreal Alouettes when they sent out an extra man for Montreal's field goal attempt on the final play. Als kicker Damon Duval, who had struggled all game long, missed his first attempt, but the Riders' too-many-men penalty gave him another try, which he made. That couldn't possibly happen again, could it? COULD IT?
At any rate, here are a few hunches I have about how Riders-Alouettes II will play out.
CALVILLO WILL STRUGGLE
I was in attendance at Regina's Taylor Field for the 2003 Grey Cup, and watched Montreal QB Anthony Calvillo drop an absolute stink-bomb in a 34-22 loss to the Edmonton Eskimos. The conditions were ridiculously cold that day, and it seemed that the frigid temperatures didn't agree with Calvillo.
Even in last year's Grey Cup in Calgary, Calvillo played very poorly until the fourth quarter. The colder it is in Edmonton on Sunday, the better it is for the Riders. The forecast is calling for -6 C with 10 km/h winds on Sunday afternoon, but hopefully that's enough to cool off Calvillo.
IF THE ALS WIN, COBOURNE WILL BE MVP
Montreal's real ace in the hole, to me, is running back Avon Cobourne. He's a tough little runner, and the Riders have had a hard time stopping the run. The question is, if Calvillo struggles, how quickly will Alouettes coach Marc Trestman identify that and put the ball in Cobourne's hands?
WILL DURANT COME THROUGH? NOT A CLUE.
I've titled this post "Fearful predictions," and I'm honestly too scared to venture a guess as to how Saskatchewan QB Darian Durant will play on Sunday. I have no idea what to expect from Durant on a week-to-week basis, or even quarter-to-quarter at times this season. He's been consistently inconsistent, despite leading the CFL in passing yardage.
I'll say this for Durant, though - he may not always get it done in the prettiest fashion, but he's a winner. He's also the kind of QB who won't lock in on one receiver - last week in Calgary, with favourite targets Andy Fantuz and Weston Dressler blanketed by the Stampeders, he looked for Chris Getzlaf more often.
It should be noted that Montreal's defence surrendered the most passing yardage in the CFL, but also led the league in interceptions. Durant threw 22 picks, and he's got to to a better job of taking care of the ball on Sunday.
FINAL SCORE
Since I'm thoroughly biased . . . Roughriders 24, Alouettes 21. The weather will help keep the offences in check, and Durant will make just enough plays down the stretch to get the job done. And Saskatchewan will have the proper number of players on the field at all times.