The names behind Werenski's failed escape attempt

Zach Werenski's trade request just got a whole lot more interesting now that the three players involved in the blocked deal have surfaced. This wasn't some simple swap between two teams - there were moving parts, competing interests, and apparently enough friction that the whole thing fell apart before it could get done. The identities of these players tell you everything about what Columbus was willing to move and what the other side wanted in return.