Madunit, Berrigan played at halfback this year. I actually think he could be a very lethal running 5/8. We know he hasn't got the passing game or the playmaking skills to ever be a halfback. The ideal combination for the future is Seymour at halfback and Berrigan at 5/8.
Lockyer IMO isn't an option at 5/8. I'm quite frankly sick of talk about him moving to the position. I used to hold the opinion that he should be playing there until I saw him play 40 minutes at 5/8 against the Sharks in 2001. Bennett moved him back to fullback at half time and has never thought of playing him there again. The simple fact is that Lockyer isn't conditioned to play in that position, he can be but that takes time which will be wasted considering we still do have plenty of options in the playmaking roles, its just all about making the right choices, something that you wonder if Bennett is capable of.