The upcoming free-agent market is loaded with outfielders, and the Chicago Cubs should be interested. Currently, Albert Almora Jr and Ian Happ are slated to platoon in center field, and Jason Heyward also fills in when needed. Dexter Fowler was also a tremendous leadoff hitter. And the Cubs have not been able to replicate his production out of the leadoff spot–as well as the defense.
The first two names that come to mind are Jackie Bradley Jr. and Mookie Betts. These two were part of the last draft that Theo Epstein took part in as a member of the Red Sox in 2011.