According to AP's Sudhn Thanawala, some of the jurors perceived her as "driven" and therefore was relentless in pursuing her agenda. That was not framed in a positive manner.
Language is a living entity, continually changing. The connotation of "driven" seems to have shifted from a positive to, well, a red flag about the character and motivations of another person.
In a more staid professional environment, adding a driven person to the team was assessed as a useful move, at least to try out. That push could raise all boats.
Now, having someone driven, on the team, could prove to be a wrench in the works. That's what we might have learned from the five-week trial "Pao v. Kleiner." In the world of work, there are currently too many new kinds of moving parts to keep operating smoothly. A unilateral force field established by a junior partner presents too risky a situation.