I'm going to get flogged for this, but with our current roster, I actually don't mind Mann in at centre. He has the ability to bust tackles and often pokes his nose through the line. He does nothing for his outside man and can kill a play, but he generally gets a quick play the ball and helps the next play. Take out two errors last night, and he had a reasonably strong game- it's just a shame that, like most weeks, those two errors usually lead directly to points. As Zoidberg pointed out, if he can manage those, he brings enough to the side to retain his spot.
Having said that, the only changes I'd like to see to our backline next week would be having Dom in at centre and giving Mann a rest. I thought he was brought to the club as a centre, and he might get caught out a bit less compared to on the wing? I guess the only questions are, can he handle it defensively and can he play on the right?