Wait so Mako gets to date the Avatar, be good at firebending, be a police officer, jokester and a good driver whereas Bolin gets two horrible new teammates and a job being a human taxi? Yeah, I expect another season of Mako bashing.
I suspect that Bolin won't be pulling a rickshaw for long. It's a pretty typical comedy device for a young, inexperienced character to start off in life doing a really cruddy McJob, or even a quick series of them, before falling into a more fulfilling (and dramatically/comedically convenient) long-term position.
With Bolin, I'm betting he ends up working for Verick. Probably as a "body guard" officially, and a lackey bro unofficially.