People have asked for this ability many times, Unfortunately the developers have said that this is something they cannot do. I don’t know why exactly, but that’s what they told us.
it definitely affects strategy. If you have a high running team, you have to watch out for guys with like 75 speed and 40 base running, because they’ll be a liability to your team. On my high running teams, I try to avoid drafting those guys, or I trade them away when I can.
I agree with damag - if they changed this feature, they would need to change the success rates of individual stealers. As is, the worst stealers get caught way too much, but the guys with like 98 speed and 80+ base running almost never get caught.