I think there is a strong case for not changing the back 5 and then tinker as much as you like in midfield and forward areas.
Which is pretty much what has happened.
I've understood most of the occasional Monty switches.
I'm struggling to understand the people who can't make sense of Duffy for Webster v Deaney.
Pre Chelsea i was (very much to my surprise) starting to cool on BDB.
Watching him with a critical eye is very different than with unbridled joy.
I'm in a fairly similar situation with Potter's selections up field.
For me he lost his free pass v Villa and is now a little behind the curve.