With the contract to which new Steelers center Justin Hartwig agreed on Tuesday, agents Drew and Jason Rosenhaus have negotiated deals this year worth more than $440 million.

Though that number reflects the total value of every contract, including the phony back-end fluff that as to many long-term deals will never be paid, it’s a staggering sum — especially for what essentially is a two-man operation.

Surely, the Rosenhauses will continue to be controversial figures in NFL circles.  Their ever-growing client list makes them an even bigger target for attack by other agents.  But, actually, they seem to get their motivation and energy from the notoriety.  

And like them or not, there’s no denying that they have been busting their butts.