take a hand
• become influential in determining something; intervene.
• "fate was about to take a hand in the outcome of the championship"
take someone in hand
• undertake to control or reform someone.
Similar:
control,
have authority over,
be in charge of,
direct,
preside over,
lead,
dominate,
master,
reform,
improve,
correct,
change,
make better,
rehabilitate,
