I never perform on the ball steals intentionally, I always assume that happens depending on your players on the ball defense skill and defensive awareness. I get most of my steals standing just outside of a passing lane and right as the other team passes the ball I reach in to tip it. usually it results in a tipped pass that becomes a steal but sometimes they just yank the ball out of the air.
No man is a failure who is enjoying life. Any fool can criticize, condemn and complain and most fools do.-Benjamin Franklin
When you cut a guy off defensively and stop his dribble, there is a point where you can hold sprint and hit steal and you'll burst under the offensive player and rip the ball.
It works best against big guys when you're a strong perimeter defender. With Rajon Rondo, once I stop a guy by cutting off his dribble and he starts like stutter dribbling, hit the steal button and you'll get a rip. My tops is 8 steals with Rondo but I've also only been playing for a week or so. (new to the game but not the series)