I'd suggest it is almost a definite that he has been.
I'd also say he should be offered a pay cut. Over the piece he has had what could only be termed as an 'acceptable' performance this season and he has been over-paid by SPL standards for this performance. Simple equation is reduced wage in the future.
Now if he was banging in 15-20 goals I'd argue differently. He will be getting paid quite a bit more than Hunt (possibly not?), Fletcher, Clarkson, Nish, Porter, McCormick etc and they are all performing ahead of him. I'd like to know on what grounds he might be feeling hard done by.