Johnny, some good points. From what I've seen, the main problems seem to be the system/formation we are trying to play and general fitness. But I don't agree with all your points.
Newsham scored most of his goals two years ago from the left side - after the first few games that season he was almost exclusively used wide left. He might be the best goalscorer we've got, but he has not always impressed when playing as an out and out striker. He certainly needs to play alongside an effective target man if he's going to play up front, as it never seemed to work on the rare occasions he partnered SWD up front.
Semple should be an outlet for the counter attack but after a good pre-season he doesn't seem to be playing well - whether that's the effect of his injury or just inconsistency, I don't know (he never was as consistent as Yates imho).
Fullbacks too lightweight? No-one said that about Jelleyman last year, when he was one of our better players. Not seen enough of Fairclough to judge but from what I've seen his main problem seems to be distribution - and you can apply that across the whole back 5, but how much is down to not having options to pass to?