Front Page excludes blogs, but how about includes only?

I'm interested in switching to the Network Theme, but with the number of blogs we've got running on our site, there's no good reason for us to allow everything to appear on the homepage. We'd like to limit only to a few dozen "featured" blogs. Is this possible with the theme without excluding every single blog I don't want to appear manually?

Other than that, I think the theme looks good.