I think when JT decided to pass on this weeks OTA's so he could go on some TV show, that's what lead to this situation. I think the coaches decided if JT is going to continue to do what he wants to do then the coaches feel that's not condusive to the direction of this team.
Here's the way I see things and really there can't be any other conclusion based on what we know. JT's talent level, health and experience makes him a very important member of this team. The FO and coaching staff may have considered trading JT this off season, but maybe what was offered wouldn't have been enough considering what JT brings to the table, so in the end it was a smarter business decision to keep JT then trade him. That could very well be the reason we didn't trade him on or before the draft.
The coaching staff may have been willing to overlook JT's decision to dance if he in return would be willing to return to the team when the dancing was over. JT then decides to remain on the West coast longer to fulfill some post football career business. The coaching staff then decided to move on without JT and informed him to stay in Cali and the Dolphins would re-enter negotiation with teams about a trade and when a trade is complete they will contact him and let him know their decision. Meanwhile JT will continue to get paid, even thought he will not be attending camp because it was an executive decision rather then JT simply holding out over a contract dispute.
That's how I see things going down over the last 24 hours.