I think they should let Sanchez keep starting, at least for now.
He's been phenomenal, and is showing no signs of wear
Maybe delay his starts here and there to reduce the innings? Soft 6 man rotation for a while?
Stroman and Dickey are clearly the weakest links in the rotation. The thougt of Hill or Gray replacing Sanchez and still sending Stroman and Dickey out every 5 days here on out doesn't sit right.