Do you just sort of forget that Johnny injured his hamstring last year in the first or second game he played?
Johnny will not make it and that's not including his off-the-field antics. The organization made a huge mistake and they know it. As dumb as their mistakes have been, they know they have a massive mistake on their hands now that he's in their hands. Jimmy is learning the ropes and hopefully they suck this year so that they are set up to draft a QB in the first or second round.
You don't sign Josh McCown to be your starting quarterback unless you have a sketchy, drunk, young quarterback you drafted in the first round who threw away any chance at redemption the moment he decided to not show up for duty because he was out passed out at his crib.