No-Follow links on clients blog?

[USHoleInOne]

I have a client who has a blog with a side bar on each page, in the sidebar there are various links to the site, as well as links to some of his partner sites.

I was looking at the recently updated open site explorer, and noticing that their domain authority is way down, a good amount below their competitors as well.

The total links compared  to the linking root domains is ~3000 to 200.

So my question is

1. How can I gain on the domain authority front? (more diverse links?)

And if so,

2. Should I no-follow the links on their blog so they don't have hundreds of pages with the same links (most internal) on there site

Thanks,
Nick

[EGOL]

1. How can I gain on the domain authority front? (more diverse links?)

I believe that the authority of your domain is more determined by who is linking to YOU rather than if you are linking to a few blogs in the sidebar.

2. Should I no-follow the links on their blog so they don't have hundreds of pages with the same links (most internal) on there site

Why not just remove those links from the sidebar of the post and category pages.  They would still display on the blog homepage but not on the many pages inside.  If you have wordpress this can be done by defining an alternative sidebar for those pages.