9 of our 14 losses last season were decided by a touchdown or less. We got rid of the two main problems in Gary Kubiak and Wade Phillips (though he did good when he first got here, he was way too predictable), then toss in Matt Schaub. Pair that with a solid draft class (addition of JDC), the return of Arian Foster, and the return of Brian Cushing, I think we'll be better than ever. Not to mention we got arguably one of the top head coaches on the market in Bill O'Brien, who is a Bill Belichick prodigy (inb4sohesacheater).
The Texans got better this offseason. Not a huge amount better, but better. The fact that the Raiders are starting a QB that was our 3rd stringer last year and how ridiculously terrible he was speaks volumes (inb4OMGITWASONEYEAR).