I pulled out the R&T Article last night. According to that article, Giugaro was "brought in early in the design phase to reinforce the direction of the Subaru design team." That, of course, could be taken many ways. If, in most cases, the design team said, "Okay, this is what we want to do: take these cues from the Legacy and these cues from (insert name here) and put "this" here and "that" there." Then, Italdesign would submit drawings based on the direction of the Subaru team and then they would bandy back and forth until they met an agreement. The other way it could be taken is, "here are our initial drawings, can you work with those, and refine them to include "this, that, or the other?" In any case, it was clearly a collaboration, but, Giugaro got to put it on his list as a car that his firm designed. I guess that could be like the last pitcher in the game getting the "W" on his record, even though he may have only pitched one inning.
In the meantime, I'm sure Johnny "D" didn't leave ALL of the DeLorean to Giorgietto, either.