Why are the pistons playing bad but the nuggets are playing good?

I hate to say it but this is one of the worst trades I've seen. The Pistons were great for the last few years with Billups and even though was going to leave should have never got traded for "ALLEN IVERSON". Allen Iverson is the biggest show-off in the NBA, he doesn't set his mind on playing anymore for some reason. Billups was great for the Pistons but oh well, good luck Iverson...