We should be able to patch this hole internally, without trading for a d-man or messing with Dumba's development. We all saw back in July that he is extremely raw.
Genoway, Kampfer, Cuma, Connelly should all be able to fill in for a month or so.
Connelly is currently banged up as well.
I agree though, I really don't want to see Dumba anywhere near the NHL roster this year. The kid is already disappointed for not making Canada's WJ team this year, and getting roughed up and looking like a fool in the NHL is just going to shatter any confidence he has left.