Apparently Epstein is a goal for the cubs, but I would say by this article his FA signings haven't been that great in the past, but he has had some good ones too. His farm system is what has made his tenure at Boston great.
"Looking at Epstein's tenure in Boston, his success is primarily a result of a. successful trades, and b. drafting/amatur scouting (which is/was not completely done by Epstein). In spite of the big wallet, in Epstein's tenure Boston's track record of free agent signings has been quite poor. Renteria, Lugo, Drew, Lackey, Crawford, Matsuzaka, Clement, Smoltz, Wells, Scutaro, Cameron, Jenks, Foulke all under-performed relative to the contracts they were given." -- SN commenter OverGreta906
"Epstein is a huge longshot. I think Friedman would be a great hire. Hopefully he can bring some of his talent scouts with him. Wilken is a great director, but not sure about the people that surround him. " -- SN commenter scott.brecht