I'll admit that, sometimes, it works. Anna Silk & Zoie Palmer seem to be working their asses off to make it work. But I think there's a certain underlying chemistry that's just not there, mostly because I'm still not sure the writers or Zoie Palmer have completely worked out just who Lauren is.
And Lauren is not the Giles of the group. Trick is the Giles of the group. That one is just a little too obvious.