I'm not preparing myself for anything. What's your source that Dumoulin is the most likely to get dealt? I'll answer that for you: you have no source, and you're making up crap.
You obviously don't value Dumoulin as much as other guys, which is fine; but you're going further with that (il)logic and just assuming that, based on your opinion and nothing from any credible evidence, Dumoulin is going to get dealt and/or should get dealt. So really you're suggesting, if we evaluate this from a point of logic:
A: Dumoulin is the most likely to get dealt because you think he's not that valuable to us, yet also not so valuable to other teams
B: implying that because we MUST make a trade, that Dumoulin will obviously be the guy who gets moved; even though by your own admission you think he has low value and so the return will be weak
C: that even if we only get a lousy return, we should still make that deal because we have to make a trade
Really good thought process. I'm curious to know how you think trading Dumoulin, for what you think will be a lousy return, will improve our team.