I've been trying to think of other contemporary English constructions that work like "to blame" in the sentence, "Who is to blame for this mess?" - where there is an implied passive (i.e. "who is to be blamed?").
So far, I can't think of any good examples. The nearest I've got is "to thank", albeit it sounds a little archaic: "Who is to thank for this mess?"
Interestingly, while this sounds semi-acceptable where "thank" acts as an ironic synonym for "blame", as in the above example, to my ear it sounds less so when used unironically: "Who is to thank for the lovely bouquet I found on my desk this morning?" This leads me to wonder whether its semi-acceptability in the negative example derives from a kind of semantic resonance with "to blame".
Anyway, I'd be interested in further examples or thoughts on this in general.