I agree, here's what's going to happen unless there's an entire editorial staff working this.
1) LinkedIn will publish anything, without fact checking, grammar checking, relevance scouring, and true editorial work to ensure only unique, valuable content is published. Therefore, the value of LinkedIn as a go-to destination for quality content will decline.
2) LinkedIn will decide to publish only content that comes to it completely consistent with the aforementioned criteria. Without editorial direction and coaching, novice writers will remain unpublished and grow frustrated with the blog, and the brand. The relevance of LinkedIn as a potential blog marketing tool, will never be realized.
I think we should do a Google hangout on this very topic. You, me, Viveka Von Rosen, and perhaps another managing editor or two.