The Warrior - S5-E18
Continuity mistake: When Teal'c and K'tano are fighting and K'tano says "is that the best you can do", you see Teal'c's training staff on the ground and it's already broken, even though that hasn't happened yet. When Teal'c stands up, that's when K'tano breaks his staff.
Answer: The commanding General is always in charge, but generals never live on base (in fact they rarely command bases, that is Colonel's work). One would have to assume he has competent officers in charge of day to day activities; at one point in the TV series there are FOUR Colonels in the staff including Sam and Shepard. The General is usually called in when something is going to happen, as generals usually work at a field HQ or at the Pentagon.