Ultimately I feel both Walker and Golding are good players who need to be nurtured and accommodated in consistent positions. I'd hate to see them follow the path of homegrown players with bags of potential who have held the full-back shirt in the past, such as Lee Smith and more recently Liam Sutcliffe.
Both players have had their ups and downs...
Golding struggled to begin with, but a few games into last season I was satisfied for him to be given the full-back role. His defence was immense, but while their were glimmers of promise on attack, I would have liked to see him bag a few more tries when we were winning more regularly. Since the FB position became contested with Walker, I think Golding's attack has improved a bit, but some of the defensive weaknesses seen in 2016 have also crept back in.
Walker looked amazing coming into games at the end of last season. His step was reminiscent of Iestyn Harris with pace, and he managed to pull off some real defensive heroics. At this point the decision to give him the FB shirt over Golding seemed to be a no-brainer. We finally had a player who, given time, looked like he could be as good as the departed Zak Hardaker. Unfortunately, Walker hasn't really hit the same heights this season. Defensive errors have crept in, much of his attacking threat seems to have been nullified, and he is coming in for a regular bashing.
ATEOTD, neither looks amazing right now. Walker arguably has more potential, being younger (let's not revisit the DOB debate!), but he still needs to develop physically, and show that he's more than an end of 2017 wonder. I suspect if both had been able to have a longer run in a winning side they'd be a lot better for it.