You have to put him somewhere in the starting 18.
Mids rotate on the ground, and it just looks better with Smith starting there.
I have no idea how many centre bounces McGrath attended this year but I’m guessing not many. That should change next year, and we’ll probably see more different centre set ups.
I think this set up is the most potent one:
TBC, Stringer, Merrett and Shiel.