Ozzie Guillén
In 2004, new manager Ozzie Guillén inserted Cotts into the bullpen. He finished April with a 0.90 ERA, but from May–July had an ERA of 8.28. He finished the season with 65.1 innings pitched, a 4–4 record, and an ERA of 5.65. On June 18, he got his first major league hit, a double, off Luis Ayala of the Montreal Expos.