My take then: "The pressure is squarely on Kolb to justify the Cardinals' investment in him. He's had time to get healthy and learn the offense. Kolb should be more confident and relaxed as a result. But he has yet to take charge of the team and command the respect that only comes through performance. He'll have an extended opportunity this summer thanks to an exhibition schedule featuring five games, one more than usual. Kolb now has 16 career starts. Skelton has 11. Neither has been consistent, but the team won more frequently with Skelton last season."
The update: Neither quarterback has staked claim to the job. That is a concern after two exhibition games. But with three exhibition games remaining, there's still time.
The injury Kolb suffered in the exhibition opener against New Orleans set him back in the short term and probably more from a perception standpoint than anything, based on his injury history. The entire offense seemed to struggle against Kansas City more recently.
Both quarterbacks could use help in the backfield. Arizona has played without top running backs Beanie Wells and Ryan Williams to this point. That makes the Cardinals much easier to play against. Pass protection has also been a problem, particularly for Kolb.
Those factors are real, but the Cardinals need one of their quarterbacks to rise above them. It hasn't happened yet.