http://espn.go.com/mlb/story/_/id/73...ve-player-deal

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The NL West champion D-backs added a front-line starter Friday and boosted their bullpen, acquiring pitchers Trevor Cahill, Craig Breslow and cash from the Oakland Athletics. And Towers isn't done -- he still hopes to add another starter, though it's unclear if that will be Joe Saunders with the sides still far apart in negotiations.

Law: Athletics fall on losing end

As Oakland's key acquisition in this trade, Jarrod Parker was an insufficient return for an established starter with plenty of upside in Trevor Cahill, writes ESPN Insider's Keith Law. Blog Insider
SweetSpot: Good trade for D-backs

The Diamondbacks needed rotation depth and a left-handed reliever. They got both from the A's Friday, writes David Schoenfield. Blog

The A's received starting pitcher Jarrod Parker, outfielder Collin Cowgill and reliever Ryan Cook in the trade Friday, all players the A's envision could be on the major league roster in 2012.
I think the A's got the better end of this. Parker AND Cowgill..