There are plenty of things about Cubans turning pro, some of them don't give a **** like Jorge Luis Gonzales or Odlanier Solis, some of them were mismanaged like Gamboa and Diosbelys Hurtado, some of them have a glass chin like Yan Barthelemy, some of them get the actual opportunities but don't have the meanstreak like Rigondeaux or the other Barthelemy's and some can put the mindset and opportunities together to have a solid career like Lara or Casamayor.
It's hard to know which one you would get, Robeisy Ramirez looked like he was part of the Solis/Gutierrez type, ****y and lazy but got his lesson early on and seems to be improving under Ismael Salas, who clearly understand the mindset of a Cuban athlete and the transition from living in Cuba to living in the US. At the end is really hard for them, they have been living in a gym since they were kids, most of them poor, to go to a place where no one gives a **** about what they do, it's a cultural shock.
Teofilo Stevenson had all the talent in the world but he struggled against swarmers, Felix Savon had dynamite in his punches but he had a glass chin.
I feel like Angel Espinosa could have been an ATG, one punch ko power in both hands, great footwork, beautiful technique, excelent balance, iron chin, liked to fight and could box as well. He had cardio issues tho.
Mario Kindelan is a P4P talent, he could have been at least at good as Rigondeaux IMO and maybe even better.
Ariel Hernandez was a fantastic mover, light on his feet, sharp counter puncher and he could punch as well but he said that he didn't liked inside fighting and that's not a good sign for a succesful pro.
Adolfo Horta could fight at any distance, he was a great boxer and his combinations were as good as anyone's, I think he could have been a world champion.
You have guys like Jose Gomez, Hector Vinent, Juan Hernandez Sierra, Candelario Duvergel, Leonardo Martinez Fizz, Roberto Balado, Julio La Cruz, all of them could have been good pro's but the truth is that we would never know...