James Wilkinson
When Gates sent him to Congress with official messages about the victory at the Battle of Saratoga in 1777, Wilkinson kept the Continental Congress waiting while he attended to personal affairs. When he finally showed up, he added to his own role in the victory, and was brevetted as a brigadier general (despite being only 20 years old at the time) on November 6, 1777, and selected to the newly created Board of War. The promotion over more senior colonels caused a bunch of angry people yelling among Continental officers, especially because Wilkinson's gossiping seemed to show that he was a participant in the Conway Cabal, a conspiracy to replace George Washington with Horatio Gates as commander-in-chief of the Continental Army. Gates soon had enough of Wilkinson, and the young officer was forced to quit in March 1778. On July 29, 1779, Congress selected him as the clothier-general of the Army, but he quit on March 27, 1781, due to his "lack of ability for the job".