Think you're right for what it's worth. No question for me that Wilshere is the one to keep, if only for potential, and after that maybe Ramsey should be given another season. We have to do a better job at replacing players though.
What's annoying about the Cazorla situation is that there wasn't a single person in all of north London who believed he'd play again this season. Between Ramsey's continuing fitness struggles and the underperforming axis of evil that is Coquelin-Xhaka, any normal football club would have gone out looking for a fix in January.