Absolutely, that would be a perfect scenario for Detroit... and from what I've seen/read of the mocks, it's very possible that Brown will be there.
You should definitely put together a mock... just make sure you take care of our needs in it...
Btw, good news that Clausen had such a solid workout... a few of the teams that draft before us have needs at QB and OL (Seattle, Buffalo, maybe even KC - I'm not a Cassel fan).