Most rookies don't help their teams win. And many players -- including the great Kevin Durant -- have also failed to make a positive impact in Year 2.

At the same time, we want to see lottery picks demonstrate that they are putting it together and fulfilling the hopes that teams and fans hold for them.

Today we'll look at seven highly-touted rookies and sophomores who've been particularly disappointing during the first half of the 2015-16 campaign. (In Part II, we'll examine MVP candidates and former MVPs who've failed to live up to expectations.)