If by talent you mean competency to do a certain work at a certain level, then of course talent isn't innate!! You're telling me little baby Messi was running around in diapers playing football (before he could walk)?
..... as cute as that would be, I don't think so.
The only thing that builds talent is p r a c t i c e!
You see little Messi as a 5 year old doing amazing things.... but what you don't see is the countless hours he spent practising and playing to get that good, staying up all night playing with a ball, getting up early kicking a ball around... I'm sorry, but there's no other way to get good at anything!