Depends what you guys refer to as talent. If you're referring to it as having the skills to dribble and vision than not all LB/RB were able to dribble or tech skillful. Zambrotta for example was no Cafu or Carlos but he proved to be one of the best If not the best during Lippi time.
As a midfielder, Zambro was already a good crosser. He's naturally intelligent and he was reading the game very well. Having the stamina, all he had to do was improve the defensive aspect of his game and he could easily play a RB/LB. He did it in no time.
Zambro already had the talent and the intelligence.
With Moli these things will go more slowly.
What i love, actually adore, about him and people like him, is that he's aware that he's not at the same level as the others and he's working like a maniac to improve. Like students in school. Many times the least smart ones get much better grades than the smarter ones simply because they're working and studying like crazy. They don't give up, they work harder than the others, and sooner or later they will succeed.
The same with Molinaro. I wouldn't be surprised if he comes first and leaves last or among the last from trainings. He's just 25 and he's willing to improve, he never gives up. We can see the huge improvement already, we'll see more in the future. He'll keep frustrating us from time to time, but the frustrations are already not the same and not as often as last year.
It was more than a year ago when Cron and many others laughed at my comparison between Molinaro and Di Livio*. Many will still laugh at it. Angelo was another player who made it to the top with his work rate.
Now, that is what i want and expect from Molinaro. Not to become the world's best like Maicon (neither Di Livio was as good as the talented Cristiano Ronaldo), but to become an important part of a winning team.
* Di Livio played in serie C and serie B until he was 27. But with huge work rate he then made it to Juve and at 29 to the NT. His best season was when he was 30, when we won the CL.