Theo Epstein and Co. have done quite well drafting, signing and acquiring amateur position players since arriving in Chicago in October 2011.
Epstein's regime selected Albert Almora Jr., Kris Bryant, Kyle Schwarber and Ian Happ in their first four drafts with the Cubs. They acquired Anthony Rizzo in January 2012 and later acquired Addison Russell in a midseason trade in 2014.
The aforementioned players have all experienced some form of on-field struggles with the Cubs, as well as off the field, in Russell's case. None of this should be discounted, but the fact is that the Cubs front office has a knack for finding position player talent.