The answer isn't nerfs like everyone thinks immediately as soon as their favorite job is surpassed by another job. Other jobs need buffs, the dps classes need to be tighter than they are.

According to the initial DPS chart, there was more than a 1k difference in dps between the highest DPS (sam) and the lowest dps (mch). Some jobs flat need a buff. The original dps chart stated rdm was only in the 4th dps slot which actually sounds reasonable.
sam, blm, smn, rdm, nin, mnk, drg, brd, mch.
Granted this is all anecdotal evidence, but then again as many runs I have seen. It seems to be fairly accurate.

Go to FFlogs and you will see a list of various jobs in the top 100, mostly sam, understandably due to their lack of utility. In the top 100 you will see about the same nin, blm, and mnk as rdm, even a brd in there.