Something they aren't passionate about, or something that bores them? There's a difference. Less than 5% of projects inspire passion for me, but there's a wide middle of projects that I don't love but will enjoy moderately and do well.

Like I said, I'm "middle-variance". I swing between 4 (minimal acceptable) and 8 (max. sustainable). I can keep a 6+ going when I'm not passionate about a project but don't mind doing it, especially if I can see it leading to something better in the future.