His competition in WBS are Pono and Broz who are basically in the same position, just a whopping 1 year younger. If he's playing better than those guys, he should get top usage in WBS. If he's not, then he shouldn't. Simple.
1) again, if we're putting ourselves in Dubas' shoes, you can call up whoever you want. 2) if you're so concerned that he's only going to get 6min a night if he gets called up, why are you so eager to have that be McGroarty, Pono, etc.? Wouldn't it be better for those guys to stay in the AHL getting top line minutes? Or you think Sully is going to turn over a new leaf with those guys and give them 15min a night but wouldn't with Poulin for some reason?
The argument you are making now is that Poulin just sucks and isn't worth the time or effort to try and develop him into something. Which if that's the case, that's fine. I disagree, but you also said before that you aren't writing him off yet. If you're not writing him off completely, then it makes no sense to get rid of him. Organizational depth is good. Having 3 relatively young guys with some potential is better than having 2.