Cubs under contract for 2015

With the Anthony Rizzo signing, I thought it'd be sweet to show you the "Cubs Core;" players under team control for 2015 (when we should EXPECT a competitive team instead of just hoping). 

Anthony Rizzo: 2021
Starlin Castro: 2020
Welington Castillo: 2017
Edwin Jackson: 2016
Luis Valbuena: 2016

Travis Wood: 2016
Darwin Barney: 2016
Jeff Samardzija: 2015
James Russell: 2015