Roberts is not that fast. Above-average speed. It's instincts, technique and homework that make it look easy. Taking advantage of Showenwiess is also a big part of it - do whatever it takes.
Obviously I was exaggerating with "without a throw" comment, but the point still strands: best basestealers make it look EASY -- except when I-Rod or Olivo are behind the plate and someone like Buerhle is on the mound, of course.
Yes, I've heard the "botched hit-n-run" excuse at least 3 or 4 times so far this year. If true, then for a team that was supposed to beat the opposition with small-ball, it happens too often.
Watch their leads. Watch the jump. Only Willie Harris has the speed to make up for it, but guys like Magglio, Uribe, Olivo, Perez, Rowand need to work on both areas.
70% is the cut-off point.