Defeat to Republic of Ireland, and the manner, was a deep disappointment but Clarke did take the nation to a first major tournament this century just last summer.
Five years ago, the Scotland manager was just about to embark on his management career north of the border, taking over at Kilmarnock in October 2017. A lot has changed in that time not just for the manager – but for players in his squad too.
Some were in the bottom tier of Scottish football or in under-age groups. Some would go on to make big money and headline moves – and a few others have stayed where they are.
Here’s a look back on where the current Scotland squad have come from, and where they were five years ago – in 2017.
13. John Carver
Scotland assistant started the year as manager of Omonia Nicosia but ended 2017 beside Alan Pardew again, at West Bromwich Albion. Photo: Stu Forster
14. Billy Gilmour
Youngster was still progressing through the ranks at Rangers, but there was already considerable noise about the teenager. After playing at Ibrox in the SFA Youth Cup against Falkirk, he wouldn't make a first-team start before moving to Chelsea in summer 2017. Photo: Michael Gillen
15. Stuart Armstrong
Made his full international debut against Slovenia in March 2017. Photo: SNS Group Craig Foy
16. Ross Stewart
Stewart, who played against Armenia and Republic of Ireland and is being linked with Rangers, started 2017 at Albion Rovers and then kicked-off season 2017-18 at St Mirren, aged 21. Photo: SNS Group