Iguchi had a career year.
Seriously though, Konerko had his best season ever but he should maintain that kind of performance. Dye also had his best season in years but staying healthy and hitting at the Cell should keep his numbers up. The worry is our bullpen. Cotts, Politte, and Hermanson all had massive career years.
Eduardo Perez should be a massive improvement at first base against lefties over Jose Hernandez. But he's really the only improvement that the Indians made unless those washed-up guys like Graves, Karsay, and Hollandsworth have good seasons for them.