What bizarre oreo is trying to say is that you CAN go and make yourself a fast player.
To do this go into your rosters, pick a player you like (make sure he is in the MLB, not the minors). Click Edit Player. Go to their settings and change their speed, as well as any other pertinent stats such as acceleration or something similar.
Otherwise, you can just get this relatively legitly. The achievement says nothing about difficulty, so you can put it on some custom settings or easy or what not, and go ahead and steal some bases, though I have not tested this method (I legit played this game, so I happened to get it before knowing what achievements were). The rest of the achievements require pro difficulty.
Obviously this is easiest if you hit a single, and then steal second and third, since actually getting the hit can be the harder part of the achievement.
Make sure that if you do end up editing a player, you either save your roster or you don't turn off your xbox until you're done.
I've had corruption save issues, so I recommend the latter.