The Cubs are hanging around in the NL Central, but I think most would agree that this time will not win the division as currently constituted. Assuming that you think the Cubs CAN contend this year, who would you target in a trade to improve the team? I've listed a few players below that I think could augment the team in some key areas; namely offense and starting pitching.
Francisco Liriano - The Twins are out of their division race already, and have shown a willingness to cash in on their ace in the past (Santana to the Mets), so he might be a good choice to bolster the Cubs rotation. However consideration should be given to whether his recent no-hitter would drive his price too far beyond his value, as he was pretty rough in his earlier starts and was on the verge of being bumped from the rotation.
Matt Kemp/Andre Either - Obviously both are fine players and the Dodgers would not part with them under normal circumstances, but the financial instability ot their ownership may require some cost cutting. The Dodgers may not plan to resign both players after they become free agents anyway, as both will command hefty salaries.
C. Beltran - The Mets have shown willingness to eat salary, and would probably be willing to do so with Beltran in exchange for young players , so the price may not be prohibitive.