This is an email I sent my friends earlier in the week about Houston's offensive coordinator's "resignation."
 
First off, what I know from media and verified sources.

Coach Levine was angry after the game over the play calling.  Specifically he was upset that Sims, the best offensive weapon, wasn't featured more.  Also he was upset about the deep passing game.  He called it the worse he's seen in the five years he's been here.  Lack of creativity and adjustments are other reasons for the anger.  Radio sideline reporter Chuck Brown, during the game, reported that the sideline was utter chaos.   

Now for the stories floating around from sources that have been right in the past but sometimes wrong.  

There are stories out that Dr. Khator herself ordered the firing of Nesbitt.  I put no credibility to that rumor.  Yes she was upset at half time...she tweeted that she "was trying to stay calm."  I some how find it hard to believe that Khator has time to micromanage a football team.  

Another tale in cyberspace is Nesbitt deviated from the game plan and Levine was livid.  I think there is some truth to this.  As I mentioned, Levine was upset Sims didn't get more touches.  Also missing were two back sets, draw plays, short passing game, RB screens and WR bubble screens.  All those plays were staples of the Air Raid Sumlin brought to UH.  Levine stated that the offense would stay the same for continuity's sake.  That those players were missing tells me the script was thrown out the window by Nesbitt.  Some say Levine ordered Nesbitt to get back to the plan but Nesbitt continued calling the plays he wanted.  If that is true then Levine had no choice but to demand Nesbitt's resignation.  Short of ordering him off the field, I can see nothing else that could be done during the game.

Another inside source, alleged to be a player's father but this is unverified, shed some more light on what may have happened.  He states that Nesbitt seemed in over his head from the moment he stepped on campus.  I'm not so sure about that.  If that were the case, he wouldn't have made it through spring ball.  The other thing he points out is that Nesbitt's practices were very intense.  Where as most practices by previous regimes for the offense were about 40 walk through plays game week.  Nesbitt instead ran through about 80 plays at full speed.  That isn't good for starter WRs legs and the QB's arm. He goes on to say that is the reason the #2 QB, Bram Kohlhausen wasn't available.  I know post game that Kohlhausen was unavailable due to injury and may not be ready next week.  This maybe why Levine didn't pull Piland and is sticking to his QB for now.

A common thread emerging from different sources is something went wrong at the start of fall practice.  Nesbitt did something that pissed Levine off.  What that is no one is saying.  Levine was big on keeping the offense the same including terminology used in play calling.  My guess is Nesbitt started to stray but not enough to reprimand or fire.

One other story out there is Levine was going to take play calling duties away from Nesbitt and he refused the reassignment.  I'm saying its 50-50 on the truth to this rumor. Nesbitt may have resigned rather than face the prospect of relegated coaching duties.  

So putting it all together I can take an educated guess on what happened.  I think it basically came down to a difference in coaching styles and philosophy.  Levine and Nesbitt didn't see eye to eye on how to run the offense.  Nesbitt probably said all the right things in the interview to get the job.  He stuck to the script with maybe a few new wrinkles in spring ball.  However, for whatever reason, Nesbitt decided to put his own stamp on the offense in the fall.  That's probably where the things went awry a few weeks ago that many allude to.  Nesbitt probably drew up a game plan that satisfied Levine's requirements.  During the game, Nesbitt's ego showed up and he decided to show Levine how he would run the offense.  Levine probably thought it over on Sunday and decided to demote Nesbitt but instead Nesbitt resigned.  Or Levine flat out threatened to fire him if he didn't resign.  

Levine promoted running backs coach Travis Bush to offensive coordinator.  Levine though will be the de facto offensive coordinator.  Levine called the plays for the Penn St. game.  He is going to assume the play calling for the rest of the season.  

While the Texas St. game was a disaster, it was only one game.  There are 11 games to go.  The true test of Levine and the team will be how they rebound from the embarrassing loss.