Is Kendall an upgrade or downgrade?

The Brewers finalized and announced a deal today bringing Jason Kendall to Milwaukee. They traded Johnny Estrada (AKA Mr. Rally killer). Estrada couldn't throw out the trash, but was good at times with a bat. Kendall can't throw any better than Estrada and is questionable at best with a bat the past three seasons. Could this be why he went from making around $12 million last year to $4.25 this year? I guess it doesn't matter much since Cordero and Linebrink flew the coop leaving us with Derrick Turnb(l)ow to save games.