A
By the book
To do things strictly by the rules
Bring to the table
To contribute or provide skills that can be benefitted from
Hands are tied
To be unable to carry out a meaningful action
Think outside the box
To think unconventionally, creatively, explore unique innovations
In a nutshell
To summarise something in as few words as possible
Up in the air
A pending situation, when things are not certain yet
Back to the drawing board
To start something again from the beginning because it’s not working as you would have liked or expected
To cut corners
To do things most quickly and cheaply but often compromising quality
Learn the ropes
To learn the basics of a profession, a specific task or activity