Personally, I think that's the wrong way to look at it. Right now i'm the 3rd worst FT% team in my league and I'm 18-1. Why? Because I put emphasis on far more important attributes.
I think that says more about your league than it does about you. jks =]
You made my point. If you start with a trainee that has decent FT (lets say average and up), then you can worry about the far more important attributes and not worry about training FT. And Let's be honest, it's not that hard to find a trainee with superstar potential+ and no holes in starting skills for less than 500k.