The package isn't unfair, but Boston would decline.
Dumoulin, Vaakaneinen, Gryz, Reilly and Forbort at left D. Dumoulin is a clear upgrade, but not enough of an upgrade (or the right kind of upgrade) to justify either not allowing a potential top 4 in Vaakaneinen from developing or to justify having over 6 million in cap hits be scratched.
McAvoy with Vaak, Gryz or Reilly has been an effective pairing. XXX/Carlo has been the place that needs an upgrade. Don't think Dumoulin/Carlo provides enough puck movement.