I'm paraphrasing here, but "we think it will work, but the only problem is we don't know how much dynamite to use" strikes me as the statement of a man who was

I'm paraphrasing here, but "we think it will work, but the only problem is we don't know how much dynamite to use" strikes me as the statement of a man who was offered a job that he would, under no circumstances, say no to, including the particular circumstance where he has no idea how to do that job. Can't say I would behave much differently in that situation, though.