This team already has depth issues. Why waste a roster spot to carry an extra QB? The signing of Chad indicates the unhappiness and lack of faith in the current QBs to lead this team at his point in their careers. That doesnt say much for McCown, who was brought in to challenge Beck for the starting position. McCown is not in his 2nd season like Beck and really has no upside. That being said, and as tough as this is for me to say, Beck's chances of being the quarterback of the future are slim. Henne is Parcells guy and Beck didnt do much to show the coaching staff that he is anything more that Cameron's leftovers. The plan now is for Pennington to start until Henne is ready. If this is indeed the plan, why carry 4 QBs? Of course, this is simply my option and educated guess.