Washington Pregame
You have to ask yourself if any loss can be considered a "good" loss. The answer to that question really determines how you feel about the two losses to Baltimore and Pittsburgh.
If you consider that Pittsburgh is last year's Super Bowl champion and that last year Baltimore went 11-5 and would have been in the Super Bowl themselves until Troy Polamalu made a great interception for the Steelers to win in the AFC championship game, you might not feel so bad about Denver's two losses. You might not worry that Denver is now 6-2 and starting to lose ground to San Diego because you will think that Denver was bound to lose a few games, and they might as well be against two AFC powerhouses. You will in fact be very excited about the upcoming game against Washington because they are pitiful, and the Broncos will undoubtedly pounce upon them like a cat mauling an unsuspecting little mouse. In other words, our losses were "good" losses. We learned valuable lessons going up against some good football teams, and those lessons will serve us well as we continue to win down the stretch.
If you think that Denver still managed to stink it up pretty bad, especially on the offensive side of the ball, then you might be a little upset and possibly harbor feelings of great animosity and disgust. You might look at the Washington game as a 'trap' game and worry that they will take advantage of our struggling offense and our exhausted defense. You might think that Ladell Betts will find a way to score points and run around our confused defense, while Orton and the offense will continue to look lethargic and generally woeful. If the above adequately reflects your feelings, then of course there is no such thing as a good loss, we are on the verge of being pretty terrible, and will most likely lose in Washington to an inferior team.