User blog comment:Supp0rt4n00bz/Support for a Loose Cannon?/@comment-5556439-20130930032916

You dont really pair someone with a partner to fill in their gaps or to stack on their strengths. You pair them with someone who they synergize with.

With that said anyone can work, its just situational. You dont pair nidalee with a "dependent" carry like Kog or Tristana but you at the same time dont pair Leona with someone like Ashe who wastes Leona's passive and burst damage.

Its just depending on whats going on and who your against. You also need to realise whats going to happen after early game. This is why Thresh/Zyra/Nami are so in general good. Theyre fantastic at all points of the game regardless of who theyre with or against. But there are always "better" picks.