For me Clarke was well over-rated up to and around Euro 2020 simply on the basis of qualifying for a tournament. Scraping into a 24-team continental tournament is no real achievement and, had it been a 16 or even 8 team set-up like in previous iterations, we would have been left at home yet again. And we still failed to reach the last 16 even when we did get there. Some individual mistakes and a freak goal granted, but I reckon he got it wrong with McTominay as the no6 against Czech Republic and O'Donnell struggled in both that and the Croatia games, when he really should have embraced the potential of Gilmour and Patterson. So it was basically the same shite as the previous 20 years but presented as a success because we reached a bloated tournament.
To give him his dues, his record in competitive matches since then has been very impressive. He has also resolved the tactical problem presented by having Tierney and Robertson in the same team. We've been poor in recent games though - England, France, Spain, Northern Ireland, Georgia - very little to celebrate in those ties. A lot riding on a respectable showing in the summer.