Ok.
Let's start with debunking the JuJu premise. JuJu is voted team MVP I believe the day or within a day or two of AB's blowup. Near as I can tell that's all anyone has to go on regarding this being the issue. That's flimsy by itself but does not jive with fact AB has been acting off since pre-camp. Also big problem with the JuJu premise is that as far as I know practice was going fine until AB ran a wrong route and Ben said to "get him out of here". That makes the JuJu premise very flimsy to me.
Next there may be nothing. There may not be a teammate he has an issue with, maybe he's just taken to many shots to the head. I don't think that's the case but possible.
Most of all please note I'm not trying to justify AB's actions. I've been reading and thinking about this a lot since it happened, after all up until last week he's been my favorite player on my favorite team for years and on top of that on a lot of dynasty teams and typically one of my biggest redraft players. For me when a Steeler is leading my fantasy team there is no better joy. You see me posting a lot in the AB thread because this is a big deal to me, I hated seeing this go down like this so I'm trying understand what led to this. Reality is there may not a valid excuse or put another way even if there is something bothering him and we knew what it was it's highly possible we'd think he was just being a big baby, lacking being a professional, narcisstic, etc,etc.
Next before I get into the player, Big Ben, he has the issue with please note I'm not trying to blame Big Ben because while on the surface it seems like he could have smoothed things over better, I just am not privy to their relationship or how bad AB's antics were that led to this and led to Big Ben actions towards AB. Big Ben has to lead the team, maybe he just is doing what he thinks a leader should do. I say maybe, I got hard time with Big Ben going public with negative comments on his teammates.
So of course this all boils down to his relationship with Big Ben and please remember what I just wrote, I'm not trying to justify AB, I'm trying to understand how it got to this point for him. And I arrived at my premise, which might be faulty, but piecing together various reports. It's a working theory, might be dead wrong, but this has all been reported by credible writers and I'm just piecing together various reports.
Whatever is going on with AB seems to have started before the season. Big Ben seemingly won a power struggle when he got rid of Haley and got his guy Fichtner. Now this seems normal, most teams try to placate their franchise QB. I don't think AB took it so well, I'm guessing he felt disrespected and feels Big Ben's voice was heard, not his. Then you have several instances with him and Big Ben where he seems to want some kind of respect that Big Ben is not willing to give. Big Ben won't call him his number one WR on his radio show as example. The argument he had with the ex-employee of the team on twitter was I believe someone very loyal to Big Ben, this is not lost on AB. Then in practice when Big Ben throws the ball in disgust and says to get AB out of here he lost it. I feel this is what we know but likely a lot of things behind the scenes causing tension between the two, tension I believe has been ongoing all year and I believe it started when they got rid of Haley and turned more control of the offense over to Big Ben. That's where it started, from there Big Ben asserted more control caused AB to not feel "respected" by the franchise or his QB.