The poblem I have with comparing it to 2011 was that farm had a lot of players who were marginal talents, but at least were above A-ball. Of the top 8 in the Sox farm (per soxprospects), only Jalen Beeks and Sharwyn are above A-ball and not suspended.
And MLB-readiness now is a very big factor in trades. I am not a huge Beeks fan, but right now he might be the biggest trade chip in the Sox minors. If you were the Royals GM, would you want Beeks as the headliner in a trade for Herrera, your best expendable trade chip?
Johnson is another trade chip, but if the Sox cannot really afford to deplete starting pitching depth. Hembree is a throw-in at best, especially for a rebuilding team. His exclusion should be far from being a deal breaker...