I may be in a minority here, but I tend to think sorting out the best midfield formation and best players in that formation is the real key. I just think that any front TWO out of Howard/Fryatt/Waghorn/Gallagher will put sufficient chances away (note I don't think Gallagher playing alongside two of them works well - NP should decide if he is good enough for one of the front two places - which he may be).
It's obvious that the first midfield name on the team sheet is Wellens (even more than Oakley), but where do we go from there? Last season at one point it proved fairly successful to bolster the midfield balance by putting Berner in there (he'd either been on the bench or full back at that point) & I'm slightly tempted to believe this might be tried again whilst playing the young Man City loanee at left back. Get the midfield balance right, and I think the forward line will do the business.
The midfield might thus look like Wellens/Oakley/Berner and ONE winger - one from Dyer/N'guessan/Gradel. King on the bench for me. I do rate him, it's just that I think his style of play is better suited to the premiership (some of his critics may scoff at that I know) than the more gutsy championship. My main point is that the midfield balance & formation needs to be sorted (which includes ending the experiment of playing Gallagher with 2 forwards) and then any of 2 from the 4 named strikers would then do well enough IMO.