I don’t think Walker has tried appealing to the evangelical organizations like Jindal, Huckabee and Perry have.
Also they may have already settled on Cruz, so the others are included just to present the appearance that they are casting a broad net. Or that they are using it as a hook to get Walker to pay more attention to them, or extract concessions from the candidates.
IOW probably a lot of options for what’s happening behind the scenes.
Which means the conservative vote will still be, at best, split between Cruz and Walker. And at worst divided among Cruz, Walker, Perry, and a host of others.
I think that's what Jeb is banking on.