I don't think Cook will crack the opening day rotation. There were some health issues early in ST and Cook has only pitched 5.1 innings yet this spring. For better or worse, I think the Red Sox are committed to give Bard a legitimate shot at starting. Fot the 5th spot, my guess is it's between Aceves, Doubront and Padilla.
At this point, I'd say:
But it's still 18 days to go. A lot can happen in 18 days...
Watching Derek Jeter make 40 defensive plays and then watching Adam Everett make 40 defensive plays at the same position is sort of like watching video of Barbara Bush dancing at the White House, and then watching Demi Moore dancing in Striptease. (Bill James)
Dustin Pedroia doesn't have the strength or bat speed to hit major-league pitching consistently, and he has no power. If he can continue to hit .260 or so, he'll be useful, and he probably has a future as a backup infielder. (Keith Law)