The first and most obvious step would be that Manning proves he’s healthy enough to play next season. Then the Colts would have to release Manning instead of paying his ridiculous $28 million option. Finally, the Cardinals would have to pass on Kevin Kolb‘s $7 million roster bonus which is due on March 17.
A number of things must fall into place before Arizona can be seen as a real option for Manning. Even if he’s healthy and Colts release him, there figures to be a number of teams with interest in signing him. Arizona would be forced to make a serious decision about Kolb’s future despite only playing one season for them. Draft picks, Dominique Rodgers-Cromartie, and the money that they’ve paid Kolb should all be viewed as a sunk cost at this point. If Manning actually does become available they’ll have to strongly consider upgrading the position. At least they would have John Skelton to fall back which may not be that when you consider that he racked up more wins than Kolb did this season.