The inexperienced Ferdinand was a poor choice of replacement for the capable Charles , having neither maturity nor aptitude for the assignment . Although Ferdinand retained nominal command , day @-@ to @-@ day decisions were placed in the hands of Mack , equally ill @-@ suited for such an important assignment . When Mack was wounded early in the campaign , he was unable to take full charge of the army . Consequently , command further devolved to Lieutenant Field Marshal Karl Philipp , Prince of Schwarzenberg , an able cavalry officer but inexperienced in the command of such a large army .