There is Rado Stoychev behind Poltavsky and the black one is more like Marshall than Juantorena imo.
I think man with glasses could be Julio Velasco from the past when he used to train Italian NT ( thats how I remembered him from some older matches )
About the rest its difficult to recognize anybody ( especially guys at the back )
I think I see Alekno down left, then the third one looks like Stoychev, Tom Hoff in the middle and up and right- Ljubo Travica
the man in front of Stoychev is Olivier Lecat
BY the way, could not recognize anyone
I think man with glasses could be Julio Velasco from the past when he used to train Italian NT ( thats how I remembered him from some older matches )
About the rest its difficult to recognize anybody ( especially guys at the back )
the man in front of Stoychev is Olivier Lecat