Doueihi can't be in the side for his kicking alone.
He is a bit of a victim of his versatility. He isn't bad, but doesn't stand out in any one position. He has some good games, but also not a superstar of the league. A bit like Tracey at the Dogs. If a player in their position becomes available to sign, they are the first ones that you would upgrade.
Unless he wants to be an in one week, out the next first grader on 300k a year, he needs to pick his position and master it. Gotta do what's right for the team and all, but he might benefit from 2 seasons in England in his preferred position and come back as a specialist after that. The NRL is short of good lock forwards...if I was him I'd bulk up, get much fitter, learn to tackle and make that position my own.