There's a list I could give that would say it would pretty much balance itself out, if not agree with good players making good managers. You can't do much more than Pep Guardiola. He wasn't an amazing player, a good player and I think he's gone past good manager.
I wouldn't say Beckham is an amazing player, or was. I don't think Amazing players make good managers, but I guess Maradona is aiming and might just make us re-think. But as Beckham is a good player, I do believe he can do a Ferguson, Ancelotti, or even Le Guen (at Lyon!)
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