But Widdop is a Stand off not a Half back, not all players are inter-changeable between those positions.
Widdop has played two games at Half Back in 2011.
His pace would be better served at Stand off where he usually plays IMO.

Thought Widdop was awful when he came on against oz tbh. We seemed to lose all semblance of shape and structure. I'm not doubting him as a player but that interchange really didn't work.

Wouldn't worry about putting him in with Sinfield, widdops running style will complement Sinfield's organising style quite well, whatever number is on their back. Sinfield's switch from loose to stand off is more focused on lessening his defensive workload, he has pretty much always played his attacking role as he does now and Danny McGuire hasn't had a bad career playing with him and at his peak he and Widdop are pretty similar running halfbacks.

Half back refers to both 6 and 7.
You mean he is not a scrum half.

So play Sinfield 7.

I was not aware that was the case in England.
In Australia a Half Back is always what you call a "scrum half"
The Half back and the five eighth make up the "Halves" in Oz

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