I asked someone who follows Anderlecht about Kouyate and they said he was rubbish. I tend to agree based on the CL matches I've seen.
If we're going to sign a CB I want Mangala. He'll cost an arm and a leg but he's as close to a sure thing as there is. Strong, fast, good with both feet, CL experience and capped for France. He plays well with Koscielny too. Reckon he's destined for City or Chelsea though.