There has been a lot of talk of the direction the Cardinals go at quarterback if Kurt Warner walks away. If Warner leaves, Matt Leinart is going to have the first crack at starting quarterback. The Cardinals aren't going to try and trade for Eagles quarterback Donovan McNabb and they aren't going to give up draft picks for an older QB who is going to be looking for a new contract. Source: Azcardinals.com
Whisenhunt has no ties to him, it was Denny Green that drafted him...however you have to think he is now the heir aparent, otherwise he hould have been traded 2 years ago.