It's not hard to beat Arizona badly. But the one thing I like about what the Chiefs did against the Cards was extend offensive drives, and get a good, steady game from quarterback Matt Cassel. He needs to link a few of those together.
Matt Cassel's play isn't much of an indicator of how the Chiefs will do. He's played poorly before -- against San Diego in Week 1 -- and they won. He's played well before -- against the Denver Broncos in Week 10 -- and they've lost. It's the running game that really matters.
When Cassel is playing well AND the Chiefs running game is playing well, these guys are tough to beat. We're not ready to crown the Chiefs yet but when they're on, this is a very good team.