http://www.baltimoresun.com/sports/basebal...0,2285694.story

According to the article, the Royals sent Ramon Ramirez to the Red Sox in exchange for Crisp.

I hate to see the Red Sox picking up more bullpen help.

The article mentions the Red Sox shedding salary through the trade. Why would the Royals take on salary for Crisp? Perhaps they see his defense helping their young pitchers.

dont they already have dejesus and gathwright as well???

They prefer to move DeJesus to left and Gaithwright has consistently shown that he can't hit. Teahen will be traded before the season starts.