Steve Turner made clear intentions to play with the Titans by email and is on film stating he will play.
However, a bank won't give you the money for a loan until they have your signature. You can't take that car from the yard until they have your signature. Are you even employed until you have signed the dotted line? I think its a balls up by the titans. Everything in life is confirmed by a signature why is this contract any different.
As far as i'm concerned he has every right to walk away from the titans and play for the storm.