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I recommend rethinking your strategy to improve you ROI as you launch your digital strategy with effective social marketing:

1. Content is critical.  I highly recommend you give up one of your web designer resources and hire a writer that knows how to research, interpret and publish information.  Have your content creator provide talking points and short blurbs about your product’s value proposition to your sales force to post and distribute to their prospects. 
2. Focus your attention on prospects within the sales funnel not just to generate leads.  As most marketers know, the lower in the funnel that you can help your sales team engage their clients in social marketing activities, the easier it is to demonstrate your social marketing strategy to customer acquisition and retention. 
3. Help your sales executives have a content rich, accomplishment facing LinkedIn profile.   Arm your sales executives by helping them market their expertise, credibility and savvy. 
4. Guest blog.  Although most blog sites restrict companies from openly advertising their product, guest blogging can be a very effective way to drive your link strategy and position your company as an industry expert
5. Re-architect your website.  Before you spend a fortune on redesigning the look and feel of your website, consider hiring a proven, highly referenced SEO expert to take your existing content and just restructure your site to maximize search engine optimization. Baseline your website before and after.