I wouldnt read too much into it - hardly any of the Scotland players done much from what Ive heard. Last time I watched them they didnt look as if they were playing for the manager. They looked a classic example of a team where the manager's lost the dressing room.
It doesnt help when the manager slags off his own players, whilst ignoring the fact that Northern Ireland got to a tournament last year with a much weaker squad. A manager who reckoned a guy playing in the top tier of German football doesnt have the neccessary experience to play against Slovakia, but a guy playing in the second tier of Scottish Football does.
I used to go to every Scotland home game, including friendlies. Nowadays? I live less than 10 miles from Easter Road and I wouldnt even have went last night if it had been free.