keep balls in the air

keep balls in the air

or

juggle balls in the air

If you keep a lot of balls in the air, you deal with many different things at the same time. They had trouble keeping all their balls in the air. In management terms, they were trying to do too much and things were starting to break down. I really am juggling a hundred balls in the air at the same time and it isn't easy. Note: This expression uses the image of juggling, where someone has to keep throwing and catching a number of balls at the same time.
See also: air, ball, keep