If he isn't tech-inclined why would they put him on this team? [ It's an honest question, considering she'd come to think that people were divided by their skills here.

Vegeta and Trunks being on red made perfect sense, in that lay out and all.

Bulma picks up her kit enough to shift it to the next leak, squatting down and beginning her work even as she keeps talking. ]

I thought this was more of a .. mmn.. sorted kind of arrangement, if you get what I mean. Everyone was placed to their strengths.