easy come, easy go
something gained easily is also lost easily
dog-eat-dog
competitive
whizz kid
young person who is very skilled at something
eagle eyes
a person who has eagle eyes (not “is eagle eyes”) can see or notice details very well
burn your bridges
leave a company on such bad terms that you will never be rehired
back to square one
to get back to where it started
take the bull by the horns
to directly confront a difficult situation in a brave and determined way
backroom boys
people whose work is important but who don't get much recognition
jack of all trades
a person who can do many different things
think outside the box
go think of creative, unconventional solutions instead of common ones
win-win
a situation where everyone benefits
cash cow
a product or service that makes a lot of money (often because the initial costs have been covered)
eager beaver
a very hard-working, enthusiastic employee
smart cookie
an intelligent person who is able to handle difficult situations
to stay ahead of the pack
to be more successful than the competition
tax haven
country or jurisdiction where taxation levels are very low
the elephant in the room
an obvious problem or controversial issue that no one wants to discuss.
big cheese
an important person
go-getter
someone with a lot of energy, drive, and motivation
corner the market
become market leader in a particular sector or niche
go the extra mile
make an extra effort to do something
fat cats
top people in a company who earn a lot of money
dead wood
people who don't contribute to the company
top dog
a person who has a lot of power, influence, and success, especially after a tough competition
cost an arm and a leg
cost a lot of money