Board Thread:Naruto Discussions/@comment-995176-20161122010151/@comment-9782468-20161123022007

Yes, but Choji is an effective follower and shows in the war that he can fight very effectively with his team.

Genin are just learning, really. They're being put in the field for the first time, they don't have enough experience to make good decisions quickly in a lot of situations. Sending a chunin is sending an experienced Shinobi. Sending a Jonin is sending an expert Shinobi. Sending a Genin is sending someone who probably has been on less than 100 missions, with most of those missions being random things like picking a garden or catching a cat.

Even if a Genin is highly capable, it's their experience, leadership, and teamwork are what's really important for a Chunin