Hall of Fame Member
To be fair, SA was, for all intents and purposes already excluded prior to the agreement.
SA had not played any international cricket since 1970 and the Gleneagles Agreement was in 1977.
A more interesting question is what would have happened if South Africa had been allowed to play until 1977?
People like Clive Rice would have played Tests and Eddie Barlow would have captained South Africa in Tests.
We would probably have seen widespread anti-apartheid protests in Australia, England, and especially New Zealand, if SA had still toured. And how would they have fared if they had been invited to the 1975 World Cup?
They'd have declined the invitation, as they hadn't been interested in playing against the non-white countries at any point before their isolation and certainly wouldn't have been willing to play against them in something that was viewed to be as insignificant as the first WC.
However, their mid-1970s series against Australia would be widely regarded as one of the greatest ever.