The Cubs got a pretty good return from a guy they weren't interested in keeping for the long term, so says mlbtraderumors.com:
Villanueva, 21, has a .285/.356/.421 batting line in 425 plate appearances with Class A Myrtle Beach this year. The third baseman entered the 2012 season as the 100th-best prospect in MLB, according to Baseball America. He has a .286/.350/.438 batting line in four minor league seasons.
Hendricks, 22, has a 2.82 ERA with 7.7 K/9 and 1.0 BB/9 in 130 2/3 innings over the course of 20 starts at Myrtle Beach. The 6'2" right-hander has 150 strikeouts and just 21 walks in 166 1/3 innings since being selected in the eighth round of the 2011 draft.
Regardless of whether or not they had Dempster in the fold, it was going to be extremely difficult to fend off the Angels for the AL West crown. However, with his addition, they stand a much better chance to stay on top. I still believe that the four-man corp of Greinke, Wilson, Jered Weaver and Dan Haren will eventually pitch the Angels to the head of the AL West, but Dempster's confidence and hunger for his first ever postseason win make this a much more difficult proposition for Anaheim.