I wouldn't include McArthur in that as he's retired over physical issues and he's always put in a shift for Scotland.
Brown I don't think should have come out of retirement last time as he looked past his best at international level and I'd much rather have the likes of McGregor, McTominay & Armstrong
I'd love to see Cairney, Ritchie & Snoddy play again but it seems they each have their own individual reasons