Its easy to see why Diaz left. oscar had 4 bigs for one spot and Johnson beat out Diaz for the 3rd spot most of the season. There were multiple times during the year where Diaz didn't even play the 5, he came in at the 4, and by the end of the year Johnson was always the first big off the bench and got more consistent minutes if/when JO and Gip were both in foul trouble. And both had every opportunity to earn those minutes; through the first 9 games both guys consistently played double digit minutes.