From today's Tribune:

Cubs call up Pie; Soriano feeling 'much better'

I'm sorry to see Fonsie hurt and wouldn't be surprised if Pie struggles mightily against Major League pitching. But IF Soriano returns healthy in a few days and IF Pie can contribute with his bat, the Cubs could be a much stronger, more well put-together team. Soriano, for example, could be moved to one of the corners and maybe Jacque Jones could be moved to some other team.

Worst case scenario: Pie keeps Soriano's position warm for a few days, returns to Iowa, and we go from there. The Cubs starting pitching has been quite good thus far and looks to be the strongest in the division, which suggests to me the Cubs should at least remain in the thick of the division race for the rest of the season.