I was going to mention Turner as you have been saying how well he has been playing but I thought a tried and tested 1st grade fullback might be the better option right now.
I'm also not suggesting JC has had his chance and "thank you next" but we need the safe option over the hype option.
I think replacing Jwal negates some "six agains" when we are already on the back foot and gassed.
Not sure if there is an answer for Clarke this year. SO he needs to be trained to do the job. From memory he wasn't a specialist 9 when we signed him either. Definitely what we are lagging this year.