Changes to that occurred as we built to the invasion, when Ike forced the issue on shifting targets towards isolating France as well as finishing the German air force so it would not threaten the invasion fleet or the beachhead.
Whatever else the strategic bombing of German mil/industrial complex did, it brought the Luftwaffe up where it could be destroyed providing an operational advantage for D-Day and throughout the remainder of the war. Ike's tacit understanding of the advantages and limitations of air power, land power and sea power is part of what made him a great operational artist.

His understanding of the primacy of policy in building strategy, his ability to organize well and his ability to work with diverse Coalition and Joint personalities during and after the war is what made him one of our greatest generals - the right man at the right place at the right time. His leadership as the Supreme Allied CDR in the European theater (remember the written statement about where blame would lay if Overlord failed) during WWII, (in my opinion) makes him a candidate for one of History's Great Generals above so many many of his incredible peers.

Best Regards, Rob