Babalj is a massive out but he was always going to struggle with so many games in a short space of time.
I agree with the starting Williams crew. I think he is more suited to a forward role than a winger (although ideally alongside another forward in a 4-4-2) and Maycon is better (or perhaps less worse) coming off the bench. Williams should also have fresh legs not playing Sunday, Pretty simple with Williams, if he doesn't work his arse off, take him off at HT. Sometimes being the main focus/extra responsibility can lift players out of a form slump.