But surely the plan for Italy was to cut of the German forces?, and Clarke decided to ignore orders and go for the glory of liberating Rome instead.
On Market Garden, I'm not clear what difference Patton commanding would've made to the weather and the completely unplanned for presence of an SS Panzer corps?, which surely are the major reasons for the failure to seize the Arnhem bridge, I'd be interested to read why you think he would have made a difference.