I think the Cardinals can go the playoffs with either QB.
And they better be able to since neither QB has shown the ability to make through 16 games.
This may be true however Warner has proven for many years what he is capable of doing. Leinart is still very much an unknown in his ability to lead an NFL team to a playoff. The coach must start the best guy and as I often say, no matter who it is. Kurt may have two years left and Matt is still a young man so if Matt is not the starter he has plenty of time to prove what he can do. Steve Young sit on the bench for some time before he took over. I still do not have a feel of who is doing better in training camp. Based on experience, Warner has the edge by far. You cannot downplay experience as few rookie QB's make it big in there first or second year for good reason. Basically, Matt has not much more experience than a rookie. I think the coaches have a good idea of who will perform best or who is performing best. Just hope there are no outside forces that are pushing them to start one guy over the other.
Based on nothing but watching Matt last year for a few games and watching Warner last year I think Warner is the best man to start the year if we want to make the playoffs. We clearly cannot start the season with 2-3 straight losses. From our play so far this year in pre-season games I am worried about us improving over last year's 8-8. Of course I know this is pre-season but you need a taste of winning at least one game.
Based on what I am reading on the board and other places it looks like Matt was destined to be the starter no matter what. My guess is Matt will start but not because he gives us the best chance of winning. To bad we cannot get the players perspective as they more than anyone know who is the best guy to get the job done and who they would like to start.