Without knowing why he left, I can't see why you'd say that. I don't particularly rate Dawson either.He's a kid, very average at best at this level at this stage of his career.
Kaboul was an experienced leader who'd built a partnership with Kone. He was left sided centre half so he was important in covering for and talking to PVA.
We needed to make Kaboul stay until at least January or bring in a Michael Dawson or someone of that ilk. As I said very poor management.