Neil Doncaster insists only a Vladimir Romanov-style cash injection would see Celtic and Rangers' grip on Scottish football challenged.
The Hoops and soon-to-be crowned Premiership champions have won 11 of the last 12 titles and have proven the side to beat for much of the last decade.
But both they and Rangers still hold an enormous financial advantage over their rivals, and nobody has won Scotland's top flight outside of Glasgow since Aberdeen in the 1984-85 season.
SPFL chief executive Doncaster doesn't see that changing unless an owner willing to splash cash, like controversial former Hearts owner Romanov did in the mid 2000s, is willing to step up.
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