Would u trade aramis ramirez, jj hardy, and adam dunn for eric chavez, jimmy rollins, and vlade guerrero??

No way. ratings for your players combine to 70. His players you have a 15, 10 and 310. Hardy is hot and has been, I see no cooling off. But, ultimately you need to look where you need help in your league. Are you lacking speed, you will only gain sppen and loose a little pop in the bat.