Complex sentence: The officer in charge of the branch for doctrine, training and professional development purposes is the Quartermaster General, the current Quartermaster General is Brigadier General, Jesse Cross, although the position is usually filled by a Major General.
Split into simpler sentences: The officer in charge of the branch for doctrine, training and professional development purposes is the Quartermaster General. The current Quartermaster General is Brigadier General Jesse Cross, although the position is usually filled by a Major General.