...so my question is, is it possible for you to maintain the same weight while simultaneously losing fat and gaining lean muscle?

Some quick info about me:
I started this new diet about a week and a half ago and just weighed myself for the second time and it's exactly at 215. Where I started. Figuring on the diet (I'm only on for 30 days just to trim down before I begin bulking on a super clean diet), I should be losing about 2-3lbs per week - average.
During this diet I'm also lifting and doing lots of cardio. I'm 6'5,215 about 15% bf. So I've got an athletic build to begin with. I getting back into it after a 4 month break where I was active but not as active as when I'm in the gym.

So what do you think?