Bad Coffee

I am almost all ways the first one in at my office. Strong work ethic, perhaps but it's more like I don't have anything else better to do. That's not the point of this posting. The point is bad coffee.
As the first person in I usually start the day making a pot of coffee for people in the area I work in. My office is in a sea of cubicals and we all share the kitchen where the coffee pot is. For the past month or two someone else has volunteered to make the coffee in the morning since he usually partakes in the pots I make.
The coffee was good for a a while but than one day it was really crappy. I thought it might have been burnt or something like that so I didn't think anything of it. This lasted a week until I realized the guy making the coffee had bough a new coffee grind (a main brand that i wont mention here) after running out of the other stuff my office purchases and provides.
I like my coffee black. But lately there really hasn't been enough cream and sugar to hide the taste of bad coffee.