If you look at his interviews he was not happy with his new position standing up. Of course he is a smart person he did not say it on paper but, you have read between the lines.
"Kingdom22" wrote:
I thought Kampy cleared the matter up: he just wasn't happy about getting all the attention with a switch to the 3-4 because the 10 other starters on Defense were going through the exact same switch also.
He has openly called playing OLB in the 3-4 "different" than being a 4-3 DE, which it obviously is. Never has he implied that he has been unhappy with the move; he has always said it was going to take getting used to moving to a new position.
For what it's worth, I've always maintained that success will determine Kampman's happiness on this team. If the 3-4 installation is successful, and this Defense continues to operate in the regular season near the level it is doing right now then Kampman will be more than fine with the move.
The NFL: Where Greg Jennings Happens.