"Good
people are found, not changed,"
says the management guru.
"You want good people,
you have to find them."
But, the guru also says, "While you can't change people
... they can change themselves."
That is to say: Training can do anything for you if you supply the motivation and energy.
The keen pilot trainee makes it; a more talented contemporary
loses the will to prevail & quits.
Any training system can induce in people - you - the drive
to be different, to be better ... but you'll need to know what you're
doing.