I guess I'm going against the crowd here. I'm trying to buy Millwood (very) low now. I don't expect a sub-4 ERA, but he should fit in nicely at the end of my rotation. I have a lot of closers (and I'm leading my league in that category), so I'm trying to package Kolb and some some scrub pitcher for Millwood. IMHO, he can't get any worse, and while the stadium is partly responsible for his struggles, he certainly hasn't had his best stuff. I expect him to turn it around.
Aside from last year, he is traditionally better in the second half (check out his career splits). He's also pretty streaky: he'll go on a 10-game tear during which he is almost unhittable. Then he'll suck it up for a while. He isn't a top-tier pitcher, but with the Phillies O, he'll get some wins.