***** NOT A TEACHER *****
(1) "Proactive" is a very popular word in the United States at the present time.
(a) It means something like: to take the initiative. That is, do NOT wait for something good to happen. You do something to
make it happen. Or: do NOT wait for something bad to happen. You do something to prevent/stop it.
(2) As you know, "active" is the opposite of "passive." "Passive" means "Oh, I cannot do anything about X." But "active" means
"I CAN and WILL do something about X."
(3) So the guy in your sentence has the potential (ability) to deliver quality when he is proactive. I get the feeling from your
sentence that he is somewhat passive and has to be urged by others to get out there and fight for X.
Student or Learner