Red Hat are funny guys

Red Hats Colby Hoke tells here that they introduced yum to solve the dependency hell. He continues: "Red Hat led the way [...] to solve a customer problem the dependency hell."
He missed totally that they were more or last the last of the major Linux distributions to solve this problem. Or does he means that they were the first suits that talked about that they had solved a problem, other Linux users didn't have. To lead does not mean to just be in front of Solaris and Microsoft, it means to be in front of all. Does he knows that Y in yum stands for Yellow Dog, which is a Linux-distribution Macs.

The dependency hell was one of the reason why I left Red Hat and Fedora in favor of first Debian and later Ubuntu.

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