There was a great link that used to illustrate this, but most of the vids aren't available any more....
I'm old enough to have seen these players outside of youtube vids. It seems like the younger guys always think players like Bird couldn't hack it in this era. I'll reiterate, great players in the NBA can play in any era.
I remember seeing Bird & the Celts in the old Capital Center when they played "The Bullets". He was telling the Kevin Loughery (coach at the time) where he was going to shoot on the next possession & pleaded with him to get someone to defend him. Sure enough, he'd hit the shot right in the defenders face. The Bullets kept trying different people to guard him & couldn't (Mike Adams, Jeff Malone, Charles Jones, etc)
Robin Ficker used to get extra spicy when Bird & the Celts came into town.