There have been a number of threads about Joba and the Yankees management. The most recent is at viewtopic.php?t=347442
To summarize some of the discussion:
(1) There does seem to be consistency in what the Yankees are doing with Joba. They said they would follow the game situation and if needed have him finish out in the pen (Iike Spring Training) to stretch him out. As Mo was coming in for the save, Joba went to the Pen to finish two more simulated innings
(2) There is an ongoing discussion about value of Joba as a setup man, vs. value as a starter. The SABR crowd feels he needs to be a starter, because you want your best pitchers to pitch as many innings as possible. (I'm on that side) Others say you can't blow games in the eighth and Joba should stay there.
(3) As you would expect, there are some vocal Yankee fans on the boards who are very happy with Yankee management (I'm on that side) and there are some who are not. The two sides focus on Cashman's decisions, especially after he was given more control of the team.