If all we're going to use him for is man-on-man in a box-and-1 kind of set-up against guys like Kobe in the 4th Q I can see it working. But is that how Pop operates? He's not the kind of coach who will change his entire game plan like that.
Having Brewer around certainly wouldn't hurt the team, but I'm skeptical that he could come in and make a huge difference at this point in the season given Pop's tendency to go with what he knows and is comfortable with.
He's shooting .384 this year, career .406, which is laughable with his athleticism (he should at least be able to finish at the rim!):
http://www.nba.com/playerfile/corey_...eer_stats.html
Must admit that I haven't seen much of him this year, but I've never been anything but appalled by his offense when I've seen him play in past years.