Then you're just stretching the definition of "talent" to mean "everything that conduces to success". And if you're going to do that, of course you wouldn't differentiate talent & achievement.
Yeah, maybe. I thought about that last line of my post, but the definition of talent is:
1. a special natural ability or aptitude: a talent for drawing.
2.a capacity for achievement or success; ability: young men of talent.
If a player is mentally weak, doesn't that negate their "ability or aptitude?" Gasquest has not shown "a capacity for achievement" ... if anything he has shown an amazing incapacity at winning big matches.
But I get how my definition is not the traditional definition of the word.