Idk after thinking about this some I don't think the lineup is that bad. With Springer unavailable Montoyo basically has 4 options for CF in Dyson, Grichuk, Dickerson and Teoscar:
-Dyson: Can't hit to save his life
-Grichuk: struggling big time and he ain't going to get it going against Cole
-Dickerson: His CF defense will be a joke but he is a serviceable hitter and bats left-handed, maybe with the short porch in RF he can plop a ball over the fence
-Teoscar: If you put him in CFer then you've got to put Dickerson in RF (assuming you don't want to jerk Gurriel around and given his crap defense I wouldn't) where the arm issues are just as prevalent
So if you don't want to move everyone up a spot maybe you just put Dickerson in the leadoff spot and hope the Jays get a lead. Then after his 3rd AB, which hopefully comes relatively soon in the game given that he's the leadoff hitter, then you can put Dyson in as the defensive replacement.