Here is my concern with Young.. he has an ultra fragile ego and confidence.. not to mention that according to some he has a hard time digesting a complex playbook. Are those products of the past? Was it a lack of preparation on his part off the field? Has he matured and that fragility dissipated?
I think it is possible that he leapfrogs both Coleman and Harrell on the roster.. but I don't think it a lock. Harrell might not have a cannon, but having said cannon is not the only way to win a roster spot at QB. Heck there have been starters in this league that have won a ton of games with more of a rag arm than cannon. Sure he tripped (got stepped on) in his first snap.. but that is hardly a case to dismiss him from the possibility of being the backup.
Heck, Rodgers didn't light things up in his what first couple years in Green Bay.. weak arm was thrown around. Injury prone.. good thing that wasn't the same QB that developed into maybe the games best over the past couple seasons.
Coleman... he might have the arm, but the book on him was he was more of a gambler than technician... I think he is still a viable project.. but the same might be said of Vince Young yet today. VY has never proven yet that he could command an NFL offense with efficiency.. and he certainly hasn't proven with his arm and accuracy that he is a NFL caliber passer. Young fits more of the scrambling QB that is more effective with his legs than his arm and reads.. to me, he is a project with a more limited window of time to develop.
Basically, I don't think he is a lock for the roster. At least not anymore than Coleman being the second QB on the roster.
Oh.. by the way, I disagree with your post. [grin1]
"The oranges are dry; the apples are mealy; and the papayas... I don't know what's going on with the papayas!"