Feeney seems like he isn't the best in any position at this point, and I don't love the idea of him 'learning his trade' in first grade. I personally feel he has as much long-term potential at fullback as Todd Carney, and that he'd only really be treading water until a more natural spot opens.
I mean he might tick the boxes on paper, but with his actual (outstanding) strengths, he really has no business fielding kicks all day. It's just going to make him sad.
If he absolutely needs to cut his teeth in first grade immediately, I would let him do it from the bench. The idea of a bench hooker is stupid - it's a waste, especially with less interchanges, and I don't know why it's trendy. We should aim to have an 80 minute hooker and a versatile bench. I know Levi or Randall can do it, besides they're footballers and they should have to.
Instead, Feeney to bench with a roving commission, and let him have some fun. Make some set plays for him to try, otherwise emphasise that his nose should be up the ball carrier's arse at all times.
Elsewhere, I only want to see players in their best position. Fullback isn't Feeney's... I mean it could be, but it's a very specialised position with a lot of boring work, not a daycare. He could be a much bigger asset with less responsibility at this stage.