Jackson was demoted today. SEVIERVILLE, Tenn. - The Tennessee Smokies, Class AA minor league affiliate of the Chicago Cubs, announce a series of roster moves Thursday. RHP Chris Carpenter has been promoted from High-A Daytona. In a corresponding roster move, RHP Jay Jackson has been sent to Daytona. Carpenter was 6-4 with a 2.19 ERA in 20 games started between Daytona and Low-A Peoria. In 98.2 innings pitched, he allowed 30 runs (24 earned) on 70 hits, with 41 walks and 93 strikeouts. In five starts with Daytona, he posted a 2-1 record. He allowed seven runs (four earned) on 15 hits, walking eight and striking out 33. Carpenter was selected by the Cubs in the third round of the 2008 First-Year Player Draft. Jackson was 5-5 with a 3.70 ERA in 16 games started with Tennessee. I n 82.2 innings pitched he allowed 35 runs (34 earned) on 73 hits, walked 41 and struck out 93. Jackson was drafted by the Cubs organization in the ninth round of the 2008 First-Year Player Draft. He was supposed to start for Daytona after the demotion.