Justin Grimm has been activated, and Matt Szczur has been recalled from Triple-A.
Cubs starters are averaging fewer than six innings per outing.
Schlitter had a 4.15 ERA for the Cubs last season.
“I kind of like that freedom unless you have an absolute hammer at the end of the game,” Cubs manager Joe Maddon says.
It appears that the Cubs may have figured out a solution to their lack of a closer: Just never lead again.
Jake Arrieta, Brett Jackson, Josh Vitters, Mike Olt and Junior Lake are among those who have agreed to terms.