Oh yeah because no forwards can play at centre. Pritchard didnt do to bad last week. Steve Menzies often plays well there either, how about Lee Gilmour, Flannery ?
In most defensive setups anyway the halfbacks are out in the centres, so in reality the likes of Tomkins would have fellow second rowers running at him.
Why is Widdop at 6 such a bad option? Hes been playing most of this year at 6 in preperation to replace Finch next year and to me he seems to have a touch more class than brown with his footwork and agility.