Not sure if I hate to say this, but we can talk all we want about Amare's commitment on the boards or JRich scoring a lot of points or Steve Nash's assists, but I think the key to this run of good play comes from one place--and I can't believe I'm writing this--Robin Lopez in the starting lineup.
There is a noticeable difference in the way the Suns play--and really, it's a no-brainer, seeing how Channing Frye is the WORST defender on the team, and that's saying a lot with a bunch of these players. I think he fits in a lot better with the 2nd unit, which is much more of a finesse unit (that's why I think LB won't have a big problem re-integrating himself).
I'll probably get ripped for saying it, but that's my take.