Matt Serra was a fat lightweight. He was a UFC washout. He wasn't some unknown with the chance of a life tiem. He was incredibly, painfully known, everyone knew he didn't have a chance, and that made him winning all the more incredible.
5 Rounds is an unsolicited collection of ideas and takes on mostly current MMA stuff. There's some more historical stuff and some "what about this guy in there" that you've come to know in there too.
A guy like Jake Shields was never going to carry a promotion on his back or move tickets, it wan't in him. But, he got to the level, for one night, and lost to one of the best, which in a way, is his crowning achievement.