The Detroit Tigers' bullpen will have the largest change in personnel of any area on the major league roster entering the 2016 season. That stands to reason, as the Tigers had arguably the worst relief corps in the American League in 2015. Detroit's bullpen ERA of 4.64 was the highest in the league, and the team blew more than 40 percent of its save opportunities.
Detroit gave up closer Joakim Soria, as well as Joba Chamberlain, veteran closer Joe Nathan, veteran lefty Tom Gorzelanny, and former closer Neftali Feliz, and with them, the vast majority of major league experience in the bullpen.