People need to remember this is about voting for a representative who best represents them. It has nothing (absolutely nothing) to do with picking a winning team. As such the only true way to throw your vote away (if you believe voting actually works) is to vote for someone who does not represent you.
As such you are correct they need to really look at Gary Johnson. IF I vote he is where I'll likely be voting.
If people don't like Johnson and are SMART and don't want Hillary or Trump then they can also check out Jill Stein of the Green Party.
The Green Party is a little too socialist for my tastes but people who liked Bernie Sanders would likely like her.
All I can say is that Johnson is REALLY close to the first time ever for a Libertarian Candidate to poll at 15%. If he reaches that they have to let him into the televised debates. Jill Stein is nowhere near close to that.
Again though it is not about a team. It is about voting for the person you think best represents you.