Nah, man. The First Order is where all of the World Champion Athletes hang out. Nothing but the best of the best.

The Rebels are the kids that wanted to join the First Order, but just couldn't cut it due to their lack of skill & physical prowess.
That's why you have an all inclusive Average Joe team with the bookworm, the kid with glasses, the library rat & the kid that thinks he can throw a ball, the braces, zits & pig tail girl. If you're going to form a team and you're short on numbers for cannon fodder, you're not going to be picky about it.