Although part of that may be because it seemed to me as if some of the other roles became "bigger" in the second season, i.e. Spartacus, while being the lead, dominated less than he did in Season 1.
One of the big problems for me was that the chem just wasn't as good between him & Crixus or him & Mira. I mean, he's no Andy, that's for sure. I had a really hard time getting with Liam in the role. I actually stopped watching for a little while. But then I went back and watched on my dvr and by the end of the season I was kind of okay with him. Not like and certainly not love but I wasn't calling him NotAndy anymore lol.