Jed Hoyer has worked for the Cubs for nine years and I’ll bet the most you ever found out about him and what he did as Theo Epstein’s top assistant was during Theo’s parting news conference earlier this week.
The division of duties between a MLB President of Baseball Operations and a General Manager is a fairly recent construct, done only in the last decade. Theo was one of the pioneers in this role; now, many teams have two men running their baseball ops departments.
Baseball is more complicated than it was years ago, when one person as General Manager not only ran the baseball ops side, but also business operations.