We almost certainly have won 6 in a row at some time. Maybe 1971-2? And there was that season in the bottom division, 2008-09, we won 2-0 how many times in a row before trouncing Elgin 6-0 and then beating Annan away?
Maybe we're just not as good as we like to think we are. We have no entitlement to good results in Europe. None at all. That we had some in the past was probably an anomaly.
We're a small nation on the northwest periphery of Europe and we haven't invested in grass roots football for decades.
Take a look at Iceland for example. Training facilities that can be used year-round. even in an Icelandic winter.
Now that money is all that talks in elite football our cash starved game just can't compete. Don't expect it to.