The Cubs are a wasteland of news at the moment. Let's look at how Project .500 is doing...
Starting 8 (total guesses right now):
vs. righties: DeWitt, Castro, Pena, Ramirez, Colvin, Soriano, Byrd, Soto
Bench: Fukudome, Baker, Hill, Barney, Guyer or other outfielder
vs. lefties: Baker, Castro, Ramirez, Pena, Byrd, Soriano, Soto, Fukudome
Bench: Colvin, DeWitt, Hill, Barney, Guyer or other outfielder
Starting 5: Zambrano, Dempster, Wells, Gorzelanny, Cashner or Silva
Bullpen: Marmol, Wood, Marshall, Grabow, Cashner or Silva, Samardzija, 1 of Russell, Caridad, Berg, Maine, Rice, Diamond, Coleman or Chad Fox.
The hints from Levine are that Colvin will get the bulk of playing time over Fukudome who would sort of super-sub throughout the week. Personally Fukudome is about the only leadoff option the team has right now against righties, so we'll see if that changes over spring training. My guess at a lineup versus righties is just that, a guess. Managers tend to like alternating lefties and righties so I could see that as an option.
The better bet and what I'd try with the current personal is Fukudome, Castro, Pena, Ramirez, Soto, Soriano, Byrd, DeWitt and I think spots 3-7 could all be shifted depending on the hot hand. You could also try Fukudome, Castro, Ramirez, Soto, Pena, Soriano, Byrd, DeWitt to break up the righties in the middle of the order(and have Pena and Soriano leave a shit load of runners on base) and it does depend if Aramis rebounds this season (let's hope for a rebound contract year).
The bullpen actually looks pretty good at the moment, but those have a way of being unpredictable. The rotation, well guess it depends on which Z we get and if Wells bounces back a little. It's solld, but definitely behind the Cards, Brewers and most likely Reds at this point.