Business idioms with 'get'

get to the bottom of s/th =  find out why a mistake or a problem happened
"We must get to the bottom of it before the client finds out."

get s/th off the ground = start a project with a successful beginning
"It’s difficult to get this off the ground."

get the hang of s/th = slowly learn how to do something new
"I get the hang of new systems quite easily."

get the picture = understand s/th
"I get the picture. You want me to resign, right?"

get the sack = be fired from your job because you did something wrong
"He should give her the sack. She really messed up."

get-up-and-go = have a lot of energy and initiative
"He’s got a lot of get-up-and-go. He’ll be successful."