But Lucas Moura has more natural talent and he hasn't exactly failed yet. His opportunities at PSG have been limited. He will get better at Spurs if th deal goes through. He's got pace and trickery which is what's needed in the PL for a winger.
He does have more natural talent but he has failed at PSG otherwise they wouldn't be selling him to a club like Spurs for much less than they bought him for 5 years ago.
He's had plenty of opportunities (more than 150 appearances!), he's just not been good enough for them. Lower standard at Spurs though.