Um, I'd have to disagree with this. It is rather like saying, "You've got wizards in D&D that aren't built for melee combat - make sure they get in melee combat!" If you are not going to allow people to take advantage of their strengths, and are in the meantime going to prey upon their weaknesses, you'll hear cries of "Foul!" PCs are supposed to reap benefits from doign their jobs right, after all.
The guy who works the computer matrix will present some challenges. He works in a whole separate universe from the guys with the guns. If you've got a bunch of physical PCs, and one hacker, you'll tend to find that one hacker taking up an inordinate amount of GM-time, dealing with him alone in his virtual world. The rest of the party tends to sit around bored out of their skulls while he does his work.