When minor league rosters were first announced, one of the strangest things I noticed was that the Tennessee Smokies did not have one single left-handed pitcher. That was pretty hard to miss. At the same time, South Bend mustered two lefty starters, and one in a relief role who has already spent time on the 7-day disabled list. The lack of lefties in the minors does seem to be a bit strange, considering their high value to the major league club.
At the major-league level, the Cubs have Jon Lester and Jose Quintana as left-handed starters and they have plenty of help in the bullpen with Justin Wilson, Brian Duensing, and Mike Montgomery.