You are Scotland head coach Clarke… what would you do?
It may seem like a lifetime ago since Scotland's men sealed qualification for their first World Cup finals since 1998, but now the build-up begins in earnest. The first of three confirmed warm-ups takes place on Saturday as fellow finalists Japan come to Hampden Park. Steve Clarke has named his squad for those friendlies, but four months have passed since Scotland last played, so form and fitness will have fluctuated in that time.
How the head coach might approach it is anyone's guess, but what would you do if you were him? The squad is largely settled, albeit teenage winger Findlay Curtis gets a maiden call after prospering at Kilmarnock on loan from Rangers. Billy Gilmour, Tommy Conway, Dominic Hyam, Ross McCrorie and Nathan Patterson have been restored, with Aaron Hickey, Ben Gannon-Doak, Lawrence Shankland and Craig Gordon among those missing out through injury.
So is this the time to experiment, or is it a case of adding caps to an experienced bunch and valuable game time for a few regulars who are not starting at their clubs? Of course, it's not just about the formation and how Scotland approach it against a side ranked 19th in the world - 19 places above Clarke's men. Japan are a high-energy team, who qualified for the World Cup with three games to spare and came from 2-0 down to beat Brazil in a friendly in October.
The visitors may rest players for their trip to face England at Wembley a few days later, but this represents a tough test for Scotland. Watch live on BBC Scotland, the BBC iPlayer and the BBC Sport website & app; listen on BBC Radio Scotland & BBC Sounds; follow live coverage online