There is indeed a risk of over-glorifying Patton. If he'd been given 'free rein', I think it most likely he would still have outrun his lines of supply. Quite possibly he would have left his own forces vulnerable to counter-attack.

As the Hammelberg fiasco showed, Patton's judgement could be seriously lacking at times.

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"Stand by to pull me out of the seat if I get hit" - Guy Gibson