Tony Campana took the roster spot of the injuired Ryan Dempster and after Marlon Byrd - who was traded to Boston Saturday - cleared up another rosterspot, the Cubs recalled Randy Wells from Triple-A Iowa. Wells will start in place of Dempster as the Cubs wrap up their series vs. the Reds Sunday afternoon.He began his season with Triple-A Iowa going 1-0 with a 9.42 ERA in three starts prior to Sunday's recall. The 29-year-old right hander is 27-30 with a 4.01 ERA in 86 Major League appearances, 82 as a starter. He spent the past three seasons with the Cubs, postinga 7-6 record with a 4.99 ERA in 23 starts in 2011.