Get/knock/lick somebody into shape
Definition 1 of 2
Pro Tip 1/3Behavior Change
Often used when someone must adjust their attitude or action to succeed. 
The new manager had to get the staff into shape to meet the sales targets.
Pro Tip 2/3Not Literal
It's not about physical shape, but improving qualities or habits. 
You need to get your study habits into shape to pass the exam.
Pro Tip 3/3Motivational Speech
Conveys a sense of urgency or a need for immediate improvement. 
I need to get my finances into shape before the new year begins.