“I’m glad you have to write the reply brief, not me.” That’s the whole email I received from a prominent appellate advocate who had written an amicus brief supporting my position after he had read opposing counsel’s brief. The difficulty he alluded to was not because the responsive brief was so stellar that I would be hard pressed to formulate winning counterarguments. Instead, it was because the brief was such a head-scratcher. We weren’t just ships passing in the night; we were sailing in different oceans.
When that’s the case, writing a reply brief can be extraordinarily difficult. It is far easier to argue with an opponent who engages you than one that seems to have dropped in from another case altogether. A well-researched and disciplined brief provides a better foil than one that lacks a theme or anything solid to refute.
More typically in a reply brief, one can argue that one set of precedents is more relevant...
