Even for Strachan's most supportive admirers – and the general enthusiasm towards him encompasses most Scotland fans and even many of his former sparring partners in the media – it has been impossible to shake off a nagging concern about what happened during his 51 miserable weeks on Teesside. Middlesbrough amount to only a fraction of Strachan's career but, for now, it remains relevant because it was his most recent managerial work and ended with supporters baying for him to be sacked.