Regardless of whatever the contract value was, Benji still was the one that wanted him and surely he would of been aware of what the contract value was before taking him on.
He would be a fool to take him at what he considered an unrealistic price because ultimately it effects his salary cap and the personnel that he can have in his top 30, which then effects his success or failure as a coach.
The story that kept coming out of the Wests Tigers was that they didn't sign anyone that Benji didn't want and I know the old story about under performing clubs having to pay more etc. but come the end of the day Benji has to take at least some of the responsibility.