I originally thought that too mate. But, I've had a think and now I'm not so sure, I think it could be true, I think he could very well he the worst mistake ever (Recruitment wise anyway) The 'Worst mistake' ever is probably giving/allowing Ellis Short control of our club, allowing him to rack up monumental debt, whilst making bad error after bad error, creating total chaos which would ultimately cripple us both on and off the pitch.
Rodwell certainly isn't anywhere near the worst midfielder we've had. That dishonorable player could include Jeff Whitley, Kevin Kilbane, John Oster. Rodwell is comfortably head and shoulders above them (Doesn't take much mind). But in terms of pound-for-pound value for money, considering he cost 10m, I think he's the worst piece of business Sunderland have done. If he had just cost a cool 2m, you could just put it down to a error of judgment or a failed risk, but when you pay 10m for a player, (bear in mind our limited resources) it's quite a spectator cock-up.
Rodwell is only a tiny, tiny piece of a bigger puzzle, which has fundamentally collapsed. Successive management failures, woeful recruitment and just general incompetence from the directors/board/owner + others is why we're now facing the prospect of going to league 1. We can't really blame Rodwell for that, although it is temping.
lol