McCULLOCH in all probabilty would not have risen above the rank of Major General and would have remained in his command, which was the securing of the Indian Territory for the
CS. He was suited for this due to his frontier service as a Texas Ranger.
The rift between he and Price pretty much stemmed from the disparity between
CS and State Troops at Wilsons Creek and Pea Ridge. Prices Missouri State Guard was under equipped and armed and McCulloch while having permission to support Price did not feel he had permission to invade Missouri. Couple that with McCulloch having a regular commission and Prices being a State Commission both could not seem to agree on who was under who's command.
Price while a great rallying point for Missouri troops also seemed to lack the ability to make sound decisive decisions without direction from his superiors (at least after Carthage) witness Iuka and Cornith. While he was hamstrung by serving under Van Dorn he didn't make the most of his opportunities.
Eithier way niether becomes a recognized leader. No West Point education. Jeff isn't about to give them higher command.